The group travels back for a few hours, on the outlook for a good ambush spot. As Gur points one out, hopefully outside the keep's nightmarish effect, you set up your ambush (what tactics?).
Perhaps surprisingly, after a few more hours of waiting, a cart does appear on the path below. Neither of the six faces look familiar, though - no Samuel, no red-haired barmaid.
Azaroth:
[sblock]A man on the cart seems to be playing with a black, curved object. From your point of view it is hard to tell, but it could be a talon...[/sblock]