Yeah I was thinking that or he heard something (like an animal or something) thought it might be an enemy but when no one attacked, figured that Penelope and Crow might have ran into them and decided to go see if they were alright cx 

EDIT (because I hit the button too fast XD) : I figure he'll pop up soon so I can do it in my next one or feel free to have him show up in yours c: whichever works lol