Sleepy Hollow: Children of the Revolution - Keith R.A. DeCandido
DeCandido has given us the best possible first tie-in for Sleepy Hollow -- it's a good follow-up to the second episode, "Blood Moon," (which I didn't even realize needed a sequel until I read this); it captures the essence of the show; and tells a good story to boot.  
This takes place about four months after "Blood Moon" -- 8 half-moons, to be exact.  We're told it's January 2014, but I'm not exactly sure where that locates things in the first season.  Somewhere between episodes 10 and 11, by my reckoning.  A coven is trying one more time to resurrect Serilda, using a collection of medals commissioned by General Washington for a group of heroes of the Revolution -- including Ichabod, of course.
DeCandido touches base with the characters and most of the events that stand out in the first season, all the touchstones are there.  Macey Irving, Sheriff Corbin, Andy Brooks (I'm pretty sure his name is dropped), Henry Parrish, the Golem . . .
The book is filled with random historical musings from Ichabod -- though the part where he criticizes (to put it very mildly) the recreation of Ft. Ticonderoga was a bit too much like his dressing down of the docent about Paul Revere.  But you know what?  It was just as amusing -- and what else are you going to to with our favorite time-displaced Witness?  
Really, the key to this book (like the show) is getting the two central characters right.  Let's look at two brief snippets:
Abbie spent most of the drive up Interstate 87 to Ticonderoga being simultaneously charmed by Crane and seriously wanting to strangle him.
Thinking about it, that defined a lot of her relationship with him.Captures Abbie's attitude, her swagger, and her humor.
and then:
. . . he pulled out the device that was referred to as a "cell phone."  He assumed the modifier "cell" was a joke referring to how much modern humanity was imprisoned by such devices, as it seemed that the citizens of the twenty-first century relied on them to an appalling degree.
Even though that's in the Third Person, if you don't hear Tom Mison's voice in your head there?  Something's wrong with you.
He captured the friendship, the feel of the characters and their voices -- both in narration and in dialogue.  Couldn't ask for more.
This tie-in captured the show's tone, its feel, its characters and its world while telling a compelling story. Great stuff. 
Note:I received this book for free from Blogging for Books for this review.  Which was generous and cool of them, but didn't impact what I said about the book.  It was strong enough to gain my respect on its own.