Since we are back at the "there is a traitor" topic:
Maybe i just forgot it, but was it ever brought up who had proposed the whole trip? After all, it doesnt seem like those monkeys were shipped onto the mountin just before the trip, its more like they are native to the mountain (not to forget the legend of the demon monkey from that region). So if there is a traitor, the prime suspects would be those that came up with the trip to that location.