Tower of Knowledge: Books, Basement and the Key
Light the three outdoor beacons to unseal the tower, beat the Skeletal Executioner, then drop through the trapdoor into the basement. On the balcony, light only gargoyles 3 and 7. Take the Storm Gem, rotate the stair, get Bodine's Forbidden Archives Key, and defeat the Necronomicon for the acid vial.
| Step | Detail | Status |
|---|---|---|
| Door | Three beacons, the bell tolls three times | 2 sources |
| Entry fight | Skeletal Executioner | 1 source |
| Basement | Trapdoor drop; Tourmaline Eye Charm in a chest | 1 source |
| Gargoyles | Light 3 and 7 only; mistakes spawn Book Bugs | 2 sources |
| Storm Gem | Roof, near Wourha; ultimate charge for Endu | 2 sources |
| Bodine | Forbidden Archives Key after the stair switch | 2 sources |
| Necronomicon | Book form and goat form; drops the acid vial | 2 sources |
Gargoyles, not the bookshelf
People search this tower for a 'book puzzle' and land on two different tasks. The balcony task is the gargoyle pair. Plaques hint at 3 and 7. Light those two heads and leave the other five dark. Lighting a wrong head calls Book Bugs. That pair is in both the TechRaptor tower chapter and the Output Lag route.
The bookshelf is a second task, inside the library, and I only have one guide for the order. Put these six volumes back in this sequence: Rubedo, History of Dragons, Dams and Weirs, Upim's Fairy Tales, The Old Ones Beyond, Koko's Sapphic Adventures. Because that order is a single guide, I am not blending it into the gargoyle steps.
After the gem
The Storm Gem sits up top, near the keeper Wourha. It is the charge for the Holy Sword's big attack, which is separate from the five Wind Gems. From under the gem, an air dash reaches the switch that rotates the stair. Bodine is the person on the far side of that stair, and the Forbidden Archives Key is what Bodine hands over.
The Necronomicon fight is a status fight at range, then a goat-shaped phase. The drop is a vial of acid. Smear it on a dagger and stab the blistered face beside Bodine. That face is the passage toward the mausoleum. Weapons people pick up along the way, according to one weapons list, include Occult Knives, Occult Spear, Wind Rapier and Skull Rod. The basement chest's Tourmaline Eye Charm is described as raising Disease resistance. I do not have a second number for that percentage.
FAQ
The door will not open.
Count the outdoor beacons. The tower stays sealed until the third toll. The bell page lists the three spots.
I lit every gargoyle.
Put them out and light only 3 and 7. The extra heads are the bug spawn.
Related
Sources
- TechRaptor tower chapter · Last checked: 2026-11-03
- Output Lag route · Last checked: 2026-11-03
- Steam guide: library books · Last checked: 2026-11-03