Xombies

"The final, climactic voyage of teenage Lulu Pangloss and the USS No-Name, a decommissioned nuclear submarine converted to a refugee vessel during the Agent X plague. Having been infiltrated by Agent X, the sub is now a nuclear Flying Dutchman, wandering the shores of post-apocalyptic America in search of life, hope, meaning ... and a mysterious secret known only as Xanadu"--P. [2] of cover.