Already predicting the approaching issue, Alex had chosen to fish around in his pockets for the returned house key from the sheriff instead of following after Poe, so when the man realizes his own mistake Alex is already holding the key up to read.

"House number 4112, apparently, if that helps any." He says and then pockets the key again to ensure he doesn't lose it while he's busy using both hands on the crutches. Walking all the way back to the sheriff's to request another key doesn't sound like the best use of his day right now.

He gestures vaguely in the direction he'd been walking before stopping to talk to Poe. "I mostly just settled for figuring out which direction the house numbers were decreasing in and hoping I eventually found it."