Schematic 3

Schematic 1 is an unique story item that allows the player to build the Tower, it was added to The Forest in v1.10.

Gameplay
The schematic can be accessed in the back pages of the survival guide, where all the story items you find are located.

More info required

Location
The third schematic is found in the Kanji Cave before the drop down to the room with all the papers. Once unlocked the player gains the ability to create the Tower. The schematic page is full of sketches of hanging skulls and skeletons as well as sections of the tower.