Trapped between two goddesses is the worst 'rock and a hard place' Samantha has ever run into.

The fourth book in the Valhalla Online series from a USA Today bestselling author.

Even worse, the 'goddesses' are really advanced AIs - artificial intelligences. One of them is plotting to go all 'Skynet' on the world, and it's up to Sam and her friends to put a stop to it.

Winning this battle isn't just about staying alive or solving a mystery. This time, everything is at stake. If Samantha fails, the outside world will burn, and everyone she ever knew or loved outside Valhalla will die.