Tempest: The Infinity Engines Book 7

The lost island of Atlantis has returned-and humanity's survival hangs by a thread.

Missing for millennia, the Oblivion Order's most secret scientific base returns without warning, its experimental gravity engine unleashing catastrophic ripples through time and space. As the island's uncontrolled presence begins to destabilise the moon's orbit, the Earth inches closer to a fatal collision with the Sun.

Only their most elite time travellers can prevent global extinction. But salvation requires...