Hmm, I think there is some misunderstanding. With the summoning they're doing that keeps making the monsters go haywire, it's not that they are actively trying to kill you. They're mostly just trying things, and if some of you end up dead, it's fine. The reason they brought forty of you here was to give them some wiggle room in case not all of you made it to the end of the two months.

But imagine it from their point of view. They're aware that maybe a monster or two are running around and attacking people, and then a few days later, that monster is dead. And that's already weird, because the monsters should be able to easily defeat all of you, but then it keeps happening. And then that will eventually make them realize there's periods of time where they can't see what's happening over here. And then they might want to check it out.