While most of the novels based on the Assassin’s Creed video games are obviously connected to specific games, the ones in Kate Heartfield’s series The Engine Of History are exceptions in that they’re set in the same fictional universe, but are not directly tied to any specific game. Though, as she explains in the following email interview we did about the newest Engine installment, Assassin’s Creed: The Resurrection Plot (paperback, audiobook), the Engine books are directly connected.