While we're still scratching our heads about exactly how the upcoming Bones-Sleepy Hollow crossover (Thursday, Oct. 29 at 8/7c, Fox) is going to work, we're particularly intrigued to see how each show's core couples will work together.

And there's good news: Unlike many Bones guest stars whose particular expertise or point of view rubs Brennan (Emily Deschanel) the wrong way, that's not the case at all with Ichabod Crane (Tom Mison). "Brennan is one of the few people who can look at Ichabod Crane as the guy who's wearing this 18th-century outfit, and she just doesn't even mind that," Bones executive producer Michael Peterson tells TVGuide.com. "That, to her, is completely off her radar. He really is an 18th-century squint, and she loves that. He's a man who's out of time, but he was a scholar, and they get along very, very well as a result of that."

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Ichabod and his partner Abbie (Nicole Beharie) first turn up on Bones when they come to claim a set of headless200-year-old remains that end up connecting with a contemporary murder. Then, in the second episode, Booth (David Boreanaz) and Brennan have a hard time accepting Ichabod and Abbie's supernatural explanation for a mysterious death flummoxing the FBI. However, Abbie — a newly minted FBI agent — finds herself right at home working with Booth to crack the case. "Her dream, more or less, was to be Booth," Peterson says. "She wanted forever to be an FBI agent and to be doing these big, high-profile cases, so they, too, have this great relationship."

Ultimately, it's the characters' chemistry that makes the crossover work, Peterson says. "Even though it's a crossover, both shows are true to themselves," he says. "We're not going to have ghosts flying through the lab or anything like that. It's going to be a Bones show with Sleepy Hollow elements to it. It was just great that the characters meshed up in such a way, and that's really been the highlight."

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