The novel “Be My Enemy” by Ian McDonald was published for the first time in 2012. It’s the second book in the Everness series and follows “Planesrunner”.
Everett Singh is on the run on the airship Everness, of which he became a crew member. He hasn’t given up on finding his father, but it’s an almost impossible deed considering the amount of existing parallel universes. The next step requires a journey that could be very dangerous on a world that for some reason is quarantined.
Everett M Singh lost his father and he almost died too. Saved thanks to the use of alien technology, his body has been greatly modified giving him superhuman abilities. This has a price and Charlotte Villers sends him to hunt for his alter-ego, for whom he sets a trap.