The Invisible Hours

Pick up any diary

1) Outside the house, behind the tower, on the back left of the generator
2) Library, on the table across from stairwell
3) Pantry, all the way back right on the barrel
4) Past the piano room to the bedroom with two beds, leaning up against a chest on the left side of the room
5) Sitting area next to Vandenberg's room, on a chair
6) Bedroom at the end of the hall above the library stairs, in the closet on the left, diary is on the dresser next to the white chest
7) Tesla's office, to the left of the door to the workshop, sitting on a canister
8) Workshop area next to Tesla's office, back of the room, on a desk to the left
9) In the telescope room, on the floor to the right of the telescope
10) In the attic, under the stairs to the roof, on a crate
11) Entering the secret workshop from the library, to the right of the Tesla coil, on a green crate next to the control panel
12) Before entering the time machine room, to the left of the entrance on a box
13) Enter the secret room near the boarded up door, on your left on a shelf