Playing deft games with time, this wryly funny short novel from the author of Children of Time focuses on a war that nobody remembers fighting and a time warrior determined to prevent history from repeating itself.

Welcome to the end of time. It's a perfect day.

Nobody remembers how the Causality War started. Really, there's no-one to remember, and nothing for them to remember if there were; that's sort of the point. We were time warriors, and we broke time.

I was the one who ended it. Ended the fighting, tidied up the damage as much as I could.

Then I came here, to the end of it all, and gave myself a mission: to never let it happen again.