Casebook 1899 – All Cases 100% Full Walkthrough

Casebook 1899 drops you into the gritty streets of Leipzig at the dawn of the 20th century. As Detective Joseph Kreiser, you’ll face four gripping cases, each blending classic point-and-click sleuthing with notebook deductions that test your wits.

This Casebook 1899 full walkthrough is designed to take you through every step, clue, and puzzle solution across all cases—from the Madcap Motorist to the Fatal Final—ensuring you achieve 100% completion and unlock every achievement along the way. Whether you’re stuck on a tricky lock, struggling with deductions, or aiming for perfection, this guide will walk you through it all.

Casebook 1899 Full Walkthrough

Click on a link to be taken to a specific case in our Casebook 1899 fullwalkthrough guide:

• Case 1
• Case 2
• Case 3
• Case 4

Case 1 – Madcap Motorist Walkthrough (100% Guide)

Police Station (tutorial & setup)

• Wait for the interaction tutorial to pop.
• Inspect the noticeboard next to the door (missing keys noted).
• Check the large filing cabinet, then the desk.
• Open your notebook → click one clue, then the other to learn how cross-referencing works.
• On the filing cabinet, open the ‘R’ drawer → click again to take the key.
• Grab the oil lamp from atop the cabinet.
• Inventory → use key on the door lock.
• Talk to Patrolman Welm:
  • Pick any two topics, then choose “Give up” to exit the convo.
• Take your hat from the coat rack (left of the door).
• Exit via the door → choose Könneritz Bridge.

Könneritz Bridge (crime scene sweep)

• Talk to Patrolman Welm about the corpse → unlocks a clue + new location.
• Examine the corpse for another clue.
• Inspect the brake band by the left track → get clue + Brake Band item.
• Try talking to the construction worker (blocked).
• Open the toolbox to his left → pick up the hammer.
• Inventory → use hammer on the scaffolding (far left).
• Pick up the fallen lunch box.
• Give the lunch box to the construction worker.
• Talk to him again → open notebook in-dialog → select “the brake band is broken” → end conversation.
• Exit bottom-left → travel to Villa Uhlich.

Villa Uhlich (suspects & tools)

• Click the bush at bottom-right (behind the woman), then the small berry bowl on the right-side hedge → gain a clue.
• Inventory → use lamp to light the dark garage → pick up scissors.
• Inventory → use scissors on lamp (examines tool edge) → gain a clue.
• Speak with Max Töpfer (mechanic):
  • Ask every option about Eduard Uhlich, then end the talk.
• Speak with Emma Uhlich about Max Töpfer.
• Open notebook on Emma’s entry and link:
  • “The Uhlichs last had a very bitter argument”
  • “There’s a bowl of deadly nightshade in the garden”
    → new clues added.
• Talk to Max Töpfer again; in the notebook select:
  • “Max Töpfer argued with Eduard Uhlich about withheld wages.”
    Close notebook, end conversation.

Notebook Deductions (form all key pairs)

Make the following combinations in the notebook to surface the final theories:

• “Eduard Uhlich was so agitated this morning that he spoke incoherently”
  + “Emma Uhlich collected deadly nightshade — allegedly by accident.”
• “Eduard Uhlich had several mistresses”
  + “The Uhlichs last had a very bitter argument.”
• “Max Töpfer quit his job as Uhlich’s mechanic”
  + “Max Töpfer argued with Eduard Uhlich over withheld wages.”
• “The edges of the brake band and the blades of the scissors seem similar” (Villa Uhlich page)
  + “The brake band is broken.” (Könneritz Bridge page)
• “The driver suffered a head wound”
  + “The driver neither tried to swerve nor to jump off.” (both on Könneritz Bridge)

When all relevant threads are connected, choose the solution that best fits the evidence to close Case 1 with 100% progress.

Case 2 – Tender Tragedy Walkthrough (100% Guide)

Station (initial investigation)

• Examine the body inside the smoke box.
• Inspect the smoke box door.
• Talk to the stationmaster and run through every dialogue option.
• While talking, open the notebook and select:
  • “The smoke chamber can be locked and unlocked from the outside.”
• Head to the back of the station.
• Flick the light switch.
• Click the box above the light switch.
• Solve the small puzzle (or skip it if needed).
• Open the green book inside the right box.
• Click the jewellery box above the book.
• Pick the lock (sequence: 1 → 2 → 1 → 2) or skip the minigame.
• Inspect the chain on the back door.
• Pull the sheet covering the left-side box.
• Click the sign revealed underneath.
• Click the name, then the address for new notebook entries.

Villa Haase (first visit)

• Click the paper on the doorstep.
• Right-click on the house above the door.
• Pull the bell cord next to the door.
• Talk to the butler about every topic.
• Pull the bell cord again.
• Use the invitation from your inventory with the butler.

Poor District (suspect hunt)

• Talk to the man by the fire → exhaust all topics.
• Use the joke book three times with him.
• Pick up the knife near the fire.
• Click the door on the ground floor (right side).
• Climb the stairs and knock on the upstairs door.

Theatre (new leads)

• Speak with the actor.
• Right-click three fruits from the vendor.
• Right-click the fruit seller.
• In the notebook, connect:
  • “The fruit seller sorts good fruit to the front”
  • “The fruit seller shouts louder when wealthy people pass by.”
• Talk to the fruit seller about everything.
• Talk to the actor again.
• Take an apple.

Villa Haase (second visit)

• Go left into the yard.
• Use the apple to distract the dog.
• While the dog barks into the dark, use the knife on the wooden stake.
• Pick up the rope near the back door.
• Enter through the back door.
• If not done earlier: use invitation with the butler.
• Right-click the right window.
• Right-click the paper on the piano → remember the note order.
• In the bedroom, talk to the pianist.
• Watch where the bird lands → notes (bottom to top): C D E G A.
• Exhaust all dialogue.
• During talk, open the notebook and select:
  • “Christian Haase regularly received invitations to gamble.”

Poor District (ghost trick)

• Combine rope + sheet in inventory → makes a “ghost.”
• Use the ghost on the clothesline.
• Click the trash cans.
• Talk to the landlady at her door.

Theatre (again)

• Talk to the actor.
• In the notebook select:
  • “The landlady needs a priest before she speaks to me.”

Poor District (second visit)

• Talk to the landlady again (new options).
• Click the boxes along the side wall.
• Inspect the letter → click tenant’s name + place of birth.
• Click the book → inspect the Cyrillic title.

Notebook Combinations (make all pairs)

• “Identity of the corpse unclear” + “Handkerchief with initials CBH on the corpse.”
• “Smoke chamber was tightly closed” + “The smoke chamber cannot be locked or unlocked from the inside.”
• “Jewellery box is empty” + “Signs of break-in on warehouse door.”
• “Missing passenger’s name is Christian Haase” + “Christian Haase calls himself Bruno.”
• “Missing security guard is Stepan Wladimirowitsch Nowikow” + “Stepan Nowikow writes in Cyrillic, from Russia.”
• “Christian Haase is addicted to gambling” + “Haase’s villa needs repairs.”
• “Stepan Nowikow lost his flat to rent arrears” + “Stepan Nowikow is a drinker.”

When all deductions are combined, select the solution that best matches the evidence to complete Case 2 – Tender Tragedy.

Case 3 – Silent Scribe Walkthrough (100% Guide)

Study (initial crime scene)

• Right-click the window.
• Right-click the desk.
• Left-click the small golden statue in the bookcase.
• Right-click the corpse.
• Right-click the water carafe.
• Right-click the fireplace.
• Talk to the maid → exhaust all topics.
• While talking, open the notebook and select:
  • “Hole in the door.”
  • “Window dirty from the inside.”

Newspaper Office

• Right-click the sandwiches on the assistant’s desk.
• Left-click the same sandwiches to inspect again.
• Talk to the assistant about sandwiches.
• Tell the assistant any story; while he turns away, click the clock in the background.
• Talk to him again → ask about time.
• Click the lunch boxes.
• Click the glue pot on his desk → take the glue brush.
• Right-click the pinboard.
• Right-click the trash can (second desk from left, front row).
• Right-click the stack of papers near the assistant.
• Talk to the assistant again → tell this story sequence:
  • “A lapdog that …”
  • “… was rescued from the water …”
  • “… in the working-class neighbourhood of Lindenau …”
  • “… yesterday.”
• Speak to the editor about everything.
• Right-click the calendar (second desk, first row).
• Click the appointment marked 10 October 1899.
• Right-click the stack of papers on the right-hand side of the second desk in the first row.

Georg Taubert’s Residence

• Talk to the man by the bush.
• Interact (left/right-click) with any 5 objects in the garden.
• Talk to him again → exhaust all topics.
• During dialogue, open notebook and select:
  • “Gustav Taubert has panned Johann Hirsch’s book.”
• Speak with the woman in the armchair.

Café Francais

• Walk to the far right → pick up the cookies on the plate.
• Talk to the man at the gramophone → exhaust all dialogue.
• Try to turn off the gramophone.
• When he closes his eyes, pour medicine (inventory) into his drink.
• Click the gramophone.
• Click the gramophone funnel.
• Use the funnel on the white-haired man.
• Talk to the white-haired man about all topics.

Study (return, roof access)

• Leave the study → go up to the roof.
• Use glue brush (inventory) on the smokestack covers (right side).
• Use cookies (inventory) on the same smokestack covers.
• Right-click the left smokestack.
• Click the crack in the left wall.

Georg Taubert (follow-up)

• Click the flagpole.
• Throw the stone (inventory) into the fountain.
• Pick up the fallen bird’s nest.
• Give the ring (inventory) to the woman in the armchair.
• Talk to both the woman and the man about all topics.

Café Francais (second visit)

• While speaking to the man at the gramophone, open notebook and select:
  • “Dora Taubert has no alibi for the night of the murder.”
• While talking to the white-haired man, open notebook and select:
  • “Georg Taubert has no alibi for the night of the murder.”

Newspaper (final checks)

• During talk with the editor, open notebook and select:
  • “Johann Hirsch allegedly stayed at Café Francais until closing time.”
  • “Clemens Rodan was in his office at the time of the crime.”
  • “Georg Taubert is a regular at the Blaue Laterne.”

Georg Taubert (endgame setup)

• Click on the book lying next to the woman in the armchair.

Café Francais (last steps)

• During conversation with the gramophone man, open notebook:
  • “Dora Taubert had a letter from Clemens Rodan for her husband.”
• Click the woman at the third table (front row).
• Exit Café Francais → travel to Blue Lantern.
• Talk to the dealer.
• Play the shell game (follow the ball).
• Talk to the dealer → request to inspect the game.
• Use the magnet (inventory) on the small ball.
• Replay and win the game.
• During dialogue, open notebook:
  • “Georg Taubert is a regular at the Blue Lantern.”

Georg Taubert (final confrontation)

• While talking to the woman in the armchair, open notebook:
  • “Georg Taubert is known as an opium user.”

Notebook Combinations (make all pairs)

• “Strange, dreamlike text” + “Empty water jug on the floor.”
• “Scratch marks in fireplace” + “Roof accessible from the street.”
• “Hole in the door” + “Door locked.”
• “Window dirty from inside” + “Fire not completely burned out.”
• “Gustav Taubert panned Johann Hirsch’s book” + “Johann Hirsch met Gustav Taubert after dinner.”
• “Gustav Taubert announced a revelation” + “Gustav Taubert had an appointment with Clemens Rodan.”
• “Johann Hirsch was not seen at Café Francais” + “Johann Hirsch allegedly stayed at Café Francais until closing.”
• “Clemens Rodan has no witnesses for his alibi” + “Rodan was at law firm at time of crime.”
• “Georg Taubert had used up his opium” + “Dora Taubert was seen on the street the evening of the crime.”
• “Dora Taubert had a letter from Rodan” + “Georg Taubert was to lose inheritance.”
• “Georg Taubert has no alibi” + “Georg Taubert is known opium user.”

When all deductions are made, pick the solution that best aligns with the evidence to close Case 3 – Silent Scribe.

Case 4 – Fatal Final Walkthrough (100% Guide)

Police Station

• Pick up the lunch box under the desk.

Prosecutor’s Office

• Click the scarf.
• Click the cane beside the door.
• Find the three documents:
  • In the crack of the armchair.
  • Under the desk.
  • On the floor.
• Use the cane (inventory) to retrieve the fourth document from the shelf.
• Place all four documents onto the desk.
• Rotate them so that no blood splatters are covered (solution check).

Villa Uhlich

• Right-click on the villa exterior.
• Talk to the children outside.
• Solve their riddle: three brothers + four sisters.
• Speak to the children again → exhaust dialogue.
• Feed the dog with the sausage (inventory).
• Place the scarf (inventory) onto the snowman.

Villa Haase

• Right-click the stack of boxes.
• Inspect the fur on the right-hand box.
• Talk to the butler about everything.
• Click the same box (where the fur was) → click on one letter, then the letter below it three times.
• Talk to the coachman → exhaust topics.
• During the talk, open notebook and select:
  • “The coachman was the last person to see Christian Haase alive.”

Gustav Taubert

• Right-click the sign on scaffolding.
• Speak with the maid about everything.
• Speak with the construction worker about everything.
• Talk to worker about “Maid” → when he turns away, use the fur on the maid.
• When he turns away again, place the stick (inventory) in the toolbox, then flip the switch on the scaffolding.
• Collect coal from the fallen sack.
• Talk to the maid again to unlock more notes.

Villa Uhlich (return)

• Place the coal onto the snowman.
• Talk to the children again.
• Inspect the plants near the shed, then right-click the hole.

Notebook Deductions (make these pairs)

• “The children’s mother is an actress” + “Several parties live in Villa Uhlich.”
• “There is a hole in the garage wall behind the bush” + “The hole is large enough for a person.”
• “Gustav Taubert did not review plays at the Old Theatre” + “Gustav Taubert was banned from the Old Theatre.”
• “Anyone can access the scaffolding” + “The scaffolding leads to the roof.”
• “The coachman took Christian Haase to Theaterplatz” + “The coachman was the last person to see him alive.”
• “Threatening letters reference plays” + “Christian Haase received threatening letters.”

Once complete, choose the two conclusions, then the third that appears: TO THE THEATRE.

Theatre (final act)

• Enter through the side entrance.
• Inspect the machine mechanism.
  • Button order (from top clockwise = 1): 2, 5, 4, 8, 2.
• Talk to the actress → exhaust dialogue.
• Go to the back of the dressing room.
• Right-click a locker number.
• Scroll to reveal the combination paper.
• Correct order:
  • 1, 9, 2, 10, 3, 11, 4, 12, 5 – pause – 13, 6, 14, 7, 15, 8.
• Open the locker marked with an X (10).
• Collect the blue book.
• Exit theatre → head right into city → follow signs in order: woman with halo → cat → hand → vase.

Nissun El Sah (grand finale)

• Click the open door at entrance booth.
• Inspect the letter.
• Inspect the cash register.
• Press any key.
• Pick up the cogwheel on the table.
• Leave booth → pick up another cogwheel on the ground.
• Check the trash bin by the entrance.
• Return to booth → use both cogwheels on the register.
• Click register → enter combo: 90 + 60 + 7 + 8.
• Open compartment → collect paper.
• Exit booth → click on theatre door.
• Enter lock combo: 5, 5, 9, 0.
• Inspect in order: candlestick → carpet → marionette on stage → marionette on table → box on right.
• Place puppets on stage: scribe → merchant → king.
• Click puppets in order: merchant → king → scribe.
• Confront the actor:
  • Answer:
    1. “Because he didn’t promote you.”
    2. “Because he didn’t let you perform.”
    3. “Because he criticised your performances.”
• Make the final choice: Conceal the truth or Admit your mistakes.

Case closed — you’ve completed Case 4 – Fatal Final and the full story of Casebook 1899.

Casebook 1899 Full Walkthrough Complete

And that’s every case cracked in Casebook 1899 using our full walkthrough. With this guide, you should now have all the clues, deductions, and achievements the game has to offer—earning your place as Leipzig’s sharpest detective. Check out our Game Guides hub for more 100% walkthrough guides like our The Fame Game: Welcome to Hollywood – All Choices & Achievements Guide.