Ari is... so, so lost. He didn't know this amount of lost was physically possible. One minute he's in a briar maze deep in Winter picking frostberries for a pie, then he takes four left turns and he exits the briar and he's in a temperate forest. Not even any snow on the ground. He turns around and there's no thicket to be seen.
He puts the frostberry pouch in his backpack and mutters the incantation to open a Way back to the mortal realm; he might land somewhere dangerous, but better endangered in the mortal realm than completely lost in the Nevernever. And... nothing. Literally nothing happens, no backlash or fizzling or anything that would indicate that he fucked up a spell, but the kind of nothing that happens when you don't have a spell to cast.
In something of a panic, he tests that he still has magic by punching a nearby tree, which splinters and crashes to the ground. "So that's still working, I guess," he mutters. "Punching systems: still online."
So, recap: magic works, he just got snatched out of deep Winter territory and put into something that kind of looks like the Wyld, and the Ways are on the fritz. Either something big is screwing with him or he's very much not in Kansas anymore. Either way, he'd better figure out what the hell is going on.