Deep Six by Ian Thomas Healy
Series: The Just Cause Universe, Book 4 · The Just Cause Universe Novels, Book 4.
Approx. 86,490 words.
Published on November 29, 2013.
When criminals are convicted, they go to jail. When they have parahuman abilities, they go to Deep Six, the most secure prison facility in the world. Six thousand feet underground, nobody has ever escaped from it. Until now. The parahuman terrorist called Misrule engineers a mass breakout, and it falls to a pair of prison guards to stop the world's most dangerous criminals from reaching freedom.