Where's the key to the cells on level 2?

Question

I'm on level two now, and I went past the part where it says "Shelter Left; Cells Right". I went into the shelter, and now I'm in the cells, but I don't see how to open them. I see a keyhole, but I can't find a key. I've looked all over the level, but I don't know how to open any of the cells.

Answer 1

I actually had a huge problem with this.

But, I finally figured it out! If you backtrack to the hallway, you'll see a cell with some arrows, and a pile of cloth on the ground. You can actually click on the cloth through the cell door to pick it up.

Underneath this pile of cloth (a vest), you will find the key!

Map location

Picture of the cell originally

Key!