Klaus was quite tempted to see what was happening on the other side of the passage, after all, humans have been taken there as captives and some would most likely die from the torture they might go through there. Unfortunately, Klaus was not as confident as Grey when it came to these things. Having the space element gave Grey the opportunity to take such risks, something Klaus did not have. With no other choice, he sealed the passage. Given his current strength, sealing a passage is not too difficult for him.
He left as soon as he was done. The surviving group of eight took the bodies of their diseased companions back, in hopes of giving them a proper burial. The corpses of the Gnomes and their Puppets were all destroyed.
