The Trap (Machaon Quest 1-4)

Synopsis
We can explore the observatory's cellars,' behind a heavy round door Dull Echo found the stairs leading down into a dungeon. I took a torch and went down. My friends followed me.

Completion
Hardly had I set foot on the old wooden floor of the dungeon when I fell a few meters down. The stairs caved in together with the floor. My friends and I were trapped.