Lost in the Forbidden Forest? Was Flamsteed off his crackers? Mo wasn't dumb enough to wander around in the Forest during the day, so he certainly wasn't going to head in there at night. Without his wand. Alone. Nope.

"Honestly, Professor, I'd probably hug a tree until someone came to find me. That's what you're supposed to do when you get lost in the woods. You hug a tree and don't move, because while you're moving, your rescuers are moving, and you'll miss each other and stay lost. So even if I recognized a familiar constellation and knew it's position based on the time of year and hour of the day and could tell the direction from that, I would still stay put. But I'd be really brave and manly about it." FYI.