When Merlin returns to Thorntrail to retrieve his shell that evening, he finds a tiny patch of moss has grown over the still somewhat damp soil where he buried it. It must have happened over the course of the day, when no one was watching. Upon unearthing it, Merlin's shell is a little bit softer, and it gives him that faint, fleeting feeling of déjà vu.

If he touches Armani's before its reburial, he won't get quite the same feeling. There's something there, but it's just an echo of a feeling, and it's hard to say if he would have felt it without knowing what to expect.