Helix: Books 4-6

The second collection of technothrillers in the USA Today bestselling Helix series: Anomaly, Inversion and Exclave.

Purity's next terrorist attack will shatter Europe.

And rogue operatives Damien and Jay are the only ones who can stop it.

First, they must negotiate an alliance between American assassins and Russian spy hunters: sworn enemies who survive by trusting no one except their own. To stop the attack, they'll need to trust each other.

But time is running out, and something isn't adding ...