It's been four years since seventeen-year-old Mitchell Johnson was hit by a bus and inexplicably ended up in the Underworld. Hell is miserable, but Mitchell knows things could be worse. After all, he has the coveted job of The Devil's intern--plus three close friends who keep him from dwelling too much on his untimely demise. Still, he'd rather be living. So when Mitchell discovers that his boss is in possession of a legendary time-travel mechanism...

Twins Charlie and Alex Douglas are the newest time travelers recruited to the Forty-Eight, a clandestine military group in charge of manipulating history. The brothers are tasked with preventing Henry VIII from marrying Jane Seymour and arrive in 1536 feeling confident, but the Tudor court is not all banquets and merriment: it is a deep well of treachery, torture, lust, intrigue, and suspicion. That makes it especially dangerous for young people...