[Dandad]

I spent four or five hours "real time" carrying crates and barrels to block every exit from the room. It took so long because I kept breaking the crates! and I started from my original save at least four times. But in spite of all my efforts I did not succeed in keeping THE monkey IN the room even once.
Nor did I ever see it trying to get out???

However, on my final try(s) the monkey was waiting outside for me when I pushed through the crates while leaving the room, and I got him there with a Burning Haze spell.

Dandad.