The Invisible Hours
36 Achievements
Steam
The Mad Writer
Details for this achievement will be revealed once unlocked
31.0%
How to unlock the The Mad Writer achievement in The Invisible Hours - Definitive Guide
In the typewriter room at the top and to the left of the main stairs on the desk
The library receipt can be located in the typing room. If I remember correctly, as soon as you go up the stairs in the foyer, you will see a room immediately to the left down the left hallway. Enter it to find a typewriter and, among the items, a library receipt where Tesla checked out the Necronomicon. How foreboding!