The Springs focus back on their doubling Halloween memories, the day that stretched on and out until nearly a year had come around again, and they come to the same conclusion. Hope had gotten out, but with the wibbly wobbly timey wimey nature of that day and that space she must have gotten out earlier than them. Early enough to regain a balance and join Spring herself. The photo showed her happy with another, a spouse maybe? She was living her own life, years removed from Sera and Sonnie, but left something behind so they would know, to thank them, and so they wouldn't worry.
The Skien is always a viable option, Sera knows it well, slipping dream to dream might be one way to locate Matty, or even discover if he's even still alive.
Circe thinks, mind on the idea Sonnie brought up, and knows that to Ken one needed to be Clear, the lines of Clarity drawn sharper so they could tell the difference between fact and fiction, life and dreams. But it wasn't just Glamour Kenning could find, it was a more general 'magic' sense. And there are of course Contracts that can be used to track someone down, especially if used creatively, but many had time limits on use, or are Clauses that might take months or years of dedicated searching, and learning to acquire. As her thoughts shift, Circe tries to focus on Colin and the glamour upon him, but since she wasn't the one to notice, or 'taste' she doesn't have a definitive answer. There was a possibility it might be Dream Poison, but she has no way of knowing for sure.
A character needs Clarity 6 or higher to us Kenning! And I think I covered everything, if I messed up please tell me!