We are currently playing Death on the Wing. I am playing the Heroes (4 of them, one being Jain Fairwood) and my friend is the overlord. The overlord chose Merriod as his open group and we are having some movement issues. My Jain is in the starting hallway along with 3 Cave Spiders and 1 Merriod. He attempted to move his Merriod to block the exit of the hallway that leads into the area where the cave spiders started, but when he moved the Merriod next to my Jain, I gained a fatigue to use her nimble ability and positioned myself in such a way that would not let him expand the Merriod to fit in any orientation. There is a cave spider blocking his ability to expand as well. The only place he can fit is where the Merriod started from.
My question is what happens to the Merriod, he used all his movement points and cannot expand and fit, does he go back to where he started from and lose that action? Also, am I using Jain's ability correctly by using it when the monsters moves next to her (thus interrupting his movement) to move one space of my own?