In this episode, the PCs head up into the mountains looking for the Yellow Monastery.
Here are the relevant photo links:
Bridge over the chasm: Image at top
The ladder: Image
Trail of Cthulhu is by Pelgrane Press
Little Lily Swing by Tri-Tachyon
Licensed under Creative Commons By Attribution 4.0 License
Myst on the Moor by Kevin MacLeod
Licensed under Creative Commons: By Attribution 3.0 License