Bloodline is the eleventh volume in a series of Repairman Jack books written by American author F. Paul Wilson.

The book was first published by Gauntlet Press in a signed limited first edition (May 2007) and later as a trade hardcover from Forge (September 2007).

Further investigation leads Jack to finding the detective murdered in ways of a water torture.

Jack later finds that not only are Hank and Jerry related by Creighton but also by the newfound mysterious oDNA found there.

Upon finding out of her daughters pregnancy, Christy is found dead, presumed suicide by slashing her wrists.