Lindsay Sterling’s niece has gone missing in the New York underground and the cops do nothing except pass along a name Jack Cole. Twenty years ago they were good buddies but horrors have changed them both. Lindsay lost her entire family except for her niece in a car accident, and Jack was held captive in New York’s underbelly for nearly two years by demented sub-humans. It was a soul-sucking experience that’s left him a shell of a man. He refuses to descend into that hell again, especially for a girl who’s probably dead anyway. But when Lindsay is nearly killed there after going it alone, Jack feels compelled to save her skin. Jack navigates Lindsay through a strange territory, populated with the eccentric, the insane and the desperate. Each encounter takes them closer to Lindsay’s niece but also closer into the clutches of the mad creatures that will enslave them.

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.

For innocent bystanders, Adele and Gerard, what starts as a routine ride on the Paris Métro spirals into a nightmare in an all-out war between Jill Lever and her inhuman enemies. As the underbelly of Paris collapses into bloody chaos the pair must fight to reach the surface, the odds stacking against them every step of the way. Only one man can save Paris from ruination. One man who can put an end to the atrocities unfolding beneath the city’s streets. For Seline Sterling he’s at once an only hope and a desperate gamble—is Tommy Coyle reformed, or is he just a time bomb waiting to explode? Two couples. One city. And the stakes have never been higher. Welcome to the Necropolis of Light.