Allister Martin is one of the keepers of a realm known as The Hall of a Million Doors. They are overseen by the Concept/God of Time. The destiny-deciding doors tend to pick up people across time who've lost thier way in life. Or, it finds people who should be destroyed before wrecking havoc on the world.
When the doors find William Aponte, a fifteen-year-old boy from a future that doesn't exist, the Time Concept relies on Allister to determine his fate. While the Time Concept believes time is linear and William's fate is decided, Allister has other plans.
Trying to traverse the hall, will Allister figure out William's place in the timeline? Or will the young teen face a fate worse than death at the hands of the monsters within the doors?