[ it's just as well that Loki responds before Stiles has the chance to contact him — he's one of the few he could think of who likely wouldn't be bothered by Peter's powers, so asking him for backup if necessary would be a good idea... only, Stiles remembers Loki's truth sword and asking him to help with this is asking him to divide his time between the search for the doctor and this... and he can't do that.

even so, his voice betrays just the slightest touch of relief when he responds, ]

... no. [ it's not the answer he wants to give, but it's the truth. ] He's probably locked himself off somewhere... but I know that even if he had a plan, he wasn't prepared to enact it. Which means he hasn't had the chance to think it through, or make it foolproof, or something else — something's going to go wrong, and we have to find him before it does.