When a brutal massacre rocks London's underworld, Zephanie Sweetly must uncover why the legendary Rawheads have suddenly reappeared, shattering the age old truce with her bloodline. Ten years ago Thomas Coyle's son disappeared, the trail leading beneath the city's streets to a shadow world ruled by secret clans. Now, bound by the prophesy of an ancient lineage, the two must fight their way through a web of lies to save those they love from the wrath of an unknown enemy. But sometimes the deadliest enemies are the ones closest to our hearts. London's Rat Queen arises, and it's time to pay the piper.