Two of Fox's hit shows, Bones and Sleepy Hollow, will crossover with a two-hour event on Thursday, October 29, just in time for Halloween. To get fans ready for this crossover, Fox has released a new trailer, showing what happens when Booth (David Boreanaz) and Bones (Emily Deschanel) interact with Sleepy Hollow's Abbie (Nicole Beharie) and Crane (Tom Mison). The trailer teases a "history-making" discovery, but you'll have to wait until Thursday night to find out what it is.

Just in time for Halloween, the scientific world of Bones meets the supernatural world of Sleepy Hollow in a crossover event to thrill the living, the dead and everything in between, airing Thursday, Oct. 29. On Bones (8:00-9:00 PM ET/PT), the grisly discovery of human remains lead Brennan (Emily Deschanel) and Booth (David Boreanaz) on a hunt for clues, during which they encounter Ichabod Crane (Tom Mison) and Abbie Mills (Nicole Beharie), searching for answers of their own. Realizing that they are after the same evidence, they team up to solve the mystery. Then, immediately following on Sleepy Hollow (9:00-10:00 PM ET/PT), the intrigue continues as Ichabod's old nemesis is back from the dead. Ichabod and Abbie need advanced forensic help and expertise to stop him and turn to Brennan and Booth to unlock 18th century secrets using 21st century science. Here's what Sleepy Hollow executive producer and showrunner Clifton Campbell had to say about the crossover in a statement.

RELATED: Bones Renewed for 12th & Final Season, Cast Responds
"When the idea came about to create this crossover event for fans, our writers' room was immediately energized. The creative freedom to merge these two worlds which, at face value, seem so different; but at their core have such striking similarities - mystery, intrigue and methodical deduction, wrapped up in such strong character partnerships - was a challenge that we all welcomed, and we believe that fans of both series will be very satisfied by the result. It was a terrific collaborative experience across the board and we are eager to see the fan reaction to Ichabod and Abbie working alongside Brennan and Booth."

Sleepy Hollow is from K/O Paper Products in association with 20th Century Fox Television. The series was created by Alex Kurtzman, Roberto Orci, Phillip Iscove and Len Wiseman. The series is executive-produced by Kurtzman, Orci, Wiseman, Clifton Campbell, Heather Kadin, Albert Kim and Damian Kindler. Bones is from Far Field Productions and Josephson Entertainment in association with 20th Century Fox Television. The series was created by Hart Hanson. Hanson, Barry Josephson, Stephen Nathan, Jonathan Collier, Michael Peterson and Randy Zisk are executive producers.

TV crossovers have been more popular than ever recently, with The CW's Arrow and The Flash frequently crossing over. NBC's Chicago Fire and Chicago P.D. are set in the same city, and Fox's own animated series' The Simpsons and Family Guy merging earlier this year. Are you looking forward to the worlds of Bones and Sleepy Hollow coming together? Let us know what you think, and stay tuned for more on this special episode, airing Thursday, October 29.