Aliens Vs. Predator: Eternal — Ian Edginton

Aliens loose in the Tokyo subways of the future is bad news. But when these monstrous beasts are pursued by Predators, the fiercest hunters in the galaxy, bad quickly becomes worse. Caught in the middle is Becca Shaw, a reckless journalist on the trail of Gideon Suhn Lee, a mysterious techno-billionaire who won't let anything stand between him and the secrets to immortality that the Predators hold. When Becca and Gideon clash, it might be the Aliens and Predators that run for cover!