Humanity is on the run.

The second Martian invasion was swift, brutal and decisive. What remains of the human race is in hiding, desperately hunting for a means of defense.

George is determined to keep his promise to Amy: no more heroics, no daring ventures, no unnecessary risk-taking. When their refuge is destroyed, however, they are plunged back into the battle and must make their way to Canada in search of vital materials.

Martian sympathisers, a dangerous sea-voyage, an audacious heist and run-ins with untrustworthy allies are only a few of the challenges George and Amy must endure. Can they succeed, and return with new weapons to use against the Martians? Or will they witness humanity’s last days?

Words from early readers:

Huge congratulations on a really clever book. I looked forward to my bedtime reading, knowing that I was going to tap back into this world you created.
Another incredibly well written, thoroughly enjoyable, continuation of this brilliant series!