Okay, here are the perception tests I meant to roll, now that Invisible Castle is back up:
Attribute + skill = 7 dice
http://invisiblecastle.com/roller/view/4798207/7d6.hits(5) → [1,6,3,6,5,3,6] = (4)
7d6.hits(5) → [4,5,2,2,6,4,6] = (3)
7d6.hits(5) → [6,6,5,5,2,5,4] = (5)
And if none of those show where the ghouls went, here is a tracking test:
Attribute + skill = 9 dice
http://invisiblecastle.com/roller/view/4798187/[4,4,5,3,1,4,1,1,5] = (2)
Which sucks, so one Edge to roll fails:
http://invisiblecastle.com/roller/view/4798204/[1,3,2,3,3,1,3] = (0)
Okay, so two hits anyway. Maybe there is a pretty low threshold for tracking a herd of stinky blood feral ghouls!