Entangled by Graham Hancock
Entangled is a time-slip novel alternating between present-day California, Brazil, and prehistoric Spain, with two teenage female protagonists who must come together to avert an incredibly bloodthirsty takeover of the human race.
Entangled is the first book in a trilogy relating the story of an unrelentingly evil master magician named Sulpa who is on the loose and determined to destroy humanity. Leoni, a troubled teen from modern-day Los Angeles, and Ria, a young woman who lives in Stone Age Spain, meet in a parallel dimension outside the flow of time to stop Sulpa’s spectacular, deadly materialization of the modern world.
Sixty-One Nails by Mike Shevdon (Courts of the Feyre #1)
THERE IS A SECRET WAR GROWING BENEATH THE STREETS OF LONDON.
A dark magic will be unleashed by the Untainted…Unless a new hero can be found. The smarter, faster brother to Neil Gaiman’s Neverwhere has arrived.
The immense Sixty-One Nails follows Niall Petersen, victim of a suspected heart attack on the London Underground, into the hidden world of the Feyre, an uncanny place of legend that lurks just beyond the surface of everyday life. The Untainted, the darkest of the Seven Courts, have made their play for power, and unless Niall can recreate the ritual of the Sixty-One Nails, their dark dominion will enslave all of the Feyre, and all of humankind too.
The Heir of Night by Helen Lowe (The Wall of Night #1)
If Night falls, all fall . . .
In the far north of the world of Haarth lies the bitter mountain range known as the Wall of Night. Garrisoned by the Nine Houses of the Derai, the Wall is the final bastion between the peoples of Haarth and the Swarm of Dark—which the Derai have been fighting across worlds and time.
Malian, Heir to the House of Night, knows the history of her people: the unending war with the Darkswarm; the legendary heroes, blazing with long-lost power; the internal strife that has fractured the Derai’s former strength. But now the Darkswarm is rising again, and Malian’s destiny as Heir of Night is bound inextricably to both ancient legend and any future the Derai—or Haarth—may have.