I think we may be done with the Forest of Dean, alas. I don't think the trio goes back there in Part 2, but hopefully I'm mistaken.
Harry knew someone was there. I like to think he knew it was Severus on some level, but I think he was half-convinced it was -insert deceased mentor/family member here- instead. You know?
And I grabbed the hair for two reasons. To link it to the fic I wrote as a sequel to this for Snow's ending DH challenge, and on the off-chance I follow through and write out the story this drabble inspired in me *grin* So we shall see.