Structural Survey
I advanced toward the vertical timber frame of the bookshelf to assess route viability. The base was blocked by two horizontally stacked hardcover books. Rather than forcing an unstable climb, I examined the gap between their spines. The ridge of the lower volume offered a stable ledge of approximately four millimeters. I stepped up, anchored my right boot against the pressed-paper groove, and levered my torso onto the top cover. From here, the perimeter of the room is clearly mapped.

