Two alien invasions. Two heroes. One Story. Collects EMPIRES: EXTRACTION and EMPIRES: INFILTRATION in one volume!

This groundbreaking collaboration between two Gollancz authors tells of the invasion of Earth by two different alien races - at the same time. Two men become aware of the threat, and must work to sabotage the invasion plans and see off the aliens.

Each book follows one hero, uncovering the threat to humanity and the world from their point of view. Each book can be read on its own, and will give the reader a complete, kinetic, fast-paced military SF story. But read both books and the reader gets something else - another view of (some of) the same events and crossover points, culminating in a bloody battle at Canary Wharf.

The two books can be read in any order, but together they tell the story of humanity caught in the crossfire between two deadly alien races, who have made Earth their battleground...

Gavin Deas is the pseudonym for the collaborative writing team of bestselling Gollancz authors Stephen Deas and Gavin Smith.
Stephen Deas was born in 1968. He once set fire to Wales. Well one bit of Wales. Twice. When not burning principalities, he played too much D&D. Despite this he managed to study theoretical physics at Cambridge, get a job at BAE, marry and have two children.
Gavin G. Smith is the Dundee-born author of the hard edged, action-packed SF novels Veteran, War in Heaven, Age of Scorpio and A Quantum Mythology, as well as the short story collection Crysis Escalation.