Item Locations in Tenebris Somnia — Every Key Pickup Grouped by the Puzzle That Needs It

This page is the master list. Each item is grouped by the puzzle that consumes it, so a missing step in a chain shows up immediately. Items are single-use per puzzle in most cases; missing one pickup is what blocks the next.

• Wrench — Iván apartment bathroom (blue door by Devora poster). Needed for boarded window, bottle-puzzle tone test, Cinema Class window.
• Developing Chemical — Iván apartment kitchen. Combined with Glass + Blood to make the Chemical-Blood solution.
• Glass — nightstand in Iván bedroom.
• Glass with Blood — result of using Glass on the broken mirror.
• Auritsatio — combined Glass + Blood + Developing Chemical; used on the boarded window.
• Glove — Floor 2 clothes rack right of the laptop desk. Used on the circuit breaker to kill power (TV Remote puzzle).
• Batteries (x2) — kitchen and behind the bathroom tub curtain. Placed into the TV remote on Floor 3, then back on Floor 2 to read the symbols.

• Scissor Blade #1 — kitchen counter; combined with the X-Ray (A.S. Key file) below the front door to get the A.S. Key.
• Scissor Blade #2 — director's office desk. Combine both into Scissors. See scissors weapon.
• X-Ray (A.S. Key file) — below the front door.
• Lighter — obtained after the Devora poster is reconstructed and burned. Combined with Black Candle / Green Candle / Red Candle to light them.
• Bathroom Key — from burning the Devora poster; opens the bathroom left of the director's office.
• Mop Handle — bathroom left of the director's office. Used against the wall square by the windows of the Floor 2 apartment candle arena.

• Bottles (4-tone puzzle) — one left outside, others on the bar table, behind the bar, and in the bathroom. Matching the bell's tone drops the USB Cable. See bottle puzzle.
• USB Cable — drops from the bottle-puzzle bell; combined with the USB Adapter to make the USB Charger.
• USB Adapter — picked up in the stair area near the boarded door above the dining room.
• USB Charger — combined USB Cable + USB Adapter. Used near the wall outlet and phone on Floor 3 (purple door left of the broken TV).

• Devora 1 Film Canister — Iván office Floor 2 chest. Used on the projector to unlock the first metal box in the theater.
• Black Tape — left door after ascending from the dining room. Combined with Plate with X in the Dinner Plate puzzle.
• Plate with X — left-most box in the theater. Combined with Black Tape to unlock the dining-room double door.
• Green Square Stone — from the dining-room double-door chest. Opens the green-symbol door on Floor 3 apartment.
• White Candle — left dresser of the Floor 3 apartment after Square Stone is used.
• RCA Cable — from the collapsed statue in the electrical current puzzle room. Placed in the Cinema Class camera. See electrical current puzzle.
• Copper Seed (green) — drops from the bird on the broken camera window of the Cinema Class. Used on the Floor 1 green vase to grow Flowers.
• Flowers — from the Floor 1 vase. Used on the female figure outline in the Cinema Class.
• Copper Key — drops from the male statue that suicides after the outline collapses. Opens the Copper Key door to the TV Room.
• Black Candle — TV Room desk (Floor 1).
• Pentacle Stone (red) — dropped by Fumus. Opens the Floor 3 bathroom door for Chemicals.
• Silver Key — received from Sanguis in the lobby chair after exhausting SPELL dialog. Opens the Floor 2 bathroom cabinet.
• Silver Bottle — from the Floor 2 bathroom cabinet. Used on three save points (Floor 2 bedroom save, Floor 2 director's office save, Floor 3 office save) to fill with three doses of water.
• Purified Water — use the three-dose bottle on the Hotel window with moonlight to purify; then use it on the Cursed Film Canister to obtain the final canister.

• Lightbulb — lamp left corner of the photo developing room Floor 1. Combined with the bloody table to make the Red Lightbulb.
• Red Lightbulb — from the bloody table in the staircase-above-dining-room area. Placed in the photo developing room lamp.
• Chemicals — from the Floor 3 Iván bathroom after the Pentacle Stone. Used on the photo developing trays.
• Photo Roll — from the Floor 1 theater lobby. Processed in the photo developing room to make the Photo.
• Photo — final developed picture; placed on the Floor 3 framed table to grant the Hexagonal Stone.
• Hexagonal Stone — drawer of the Floor 3 table. Opens the Floor 2 film school symbol door for Sanguis dialog. See photo development puzzle.

• Cold Chisel — from the theater box after watching the full film (or only Canister 3). Opens the boarded door at the top of the dining-room staircase.
• Old Book — tracks randomized symbols (TV Remote, Door A projector code, elevator color pattern, TV Room patterns). Note: the bible is NOT the same item.
• Bible — relevant only for Ending #3 VIVUS EX MORTIBUS, not part of the main puzzle chain.

• Tin Key — drops on a wire after the final Carnito fight. Opens the Desiderium hallway and unlocks the Green Candle box.
• Green Candle — from the Desiderium theater center box. Combined with Lighter to access Floors 2 and 3.
• Lead Fly — drops from the broken Julia statue after the Desiderium fly puzzle. Opens the door with the fly insignia.
• Glass Vase — from the Floor 3 plant vase during Desiderium. Combined with all three Film Canisters.
• Circular Plate — drops from the oven after using the Vase Filled With Chemicals And Blood and the Lighter.
• VHS Tape — from the Chest in Iván's Floor 2 office once the Circular Plate is used.
• Julia Figure / Ivan Figure — figures in the Glass Box; pulled from the bedroom photo / TV ambush.
• Photograph set — from the clothes rack in the Floor 2 office. Used on the Floor 3 wall with roman numerals for the poem puzzle. See Desiderium poem puzzle.
• Auritsatio spray (full) — from breaking the studio light with the Vase Filled With Chemicals And Blood during Desiderium.
• Lapis Fictus / Melanosis / Virdis / Aurifer Knives — chain forged via the Desiderium sequence. See knife weapon.
• Lead Key — drops from the TV after the Aurifer Knife sequence. Opens the symbol door to the Hotel.

• Inverted Red Crosses — Ending #3 drops. Placed outside Séptimo Arte to unlock Ending #3. See endings.

A single missable step blocks downstream items. Example chain: Classics Never Die (Screwdriver) → Iron Pipe → Exhaust Pipe; or Star Lockers (Stella Plena) must all open before the Sanguis beast-form boss, because Sanguis's chase is the point of no return. The missable checklist is on the achievements page; the full walkthrough puts every pickup into its floor order.