The incantation that Ichabod Crane needs to use in order to awaken the kindred is a quote from H. P. Lovecraft's the 'The Call of Cthulhu', roughly translated to Romano-Greek. The quote is:
"That is not dead which can eternal lie,
And with strange aeons even death may die"
This is the first episode in which Lyndie Greenwood (Jenny Mills) and John Noble (Henry Parish) appear in the opening credits as full time cast rather than as guest stars.