Aurora burning - Amie Kaufman

From theNew York Timesbestselling co-authors of the Illuminae Files comes the second book in the epic Aurora Cycle series about a squad of misfits, losers and discipline cases who just might be the galaxy's best hope for survival.

Our heroes are back . . . kind of.
First, the bad news: An ancient evil - you know, your standard consume-all-life-in-the-galaxy deal - is about to be unleashed.
The good news? Squad 312 is standing by to save the day.
They've just got to take care of a few small distractions first.
Like the cadre of illegit GIA who'll stop at nothing to get their hands on Auri.
Or Kal's long-lost sister, who's not exactly happy to see her baby brother, and has a Syldrathi army at her back.
With half the known galaxy on their tails, Squad 312 has never felt so wanted.
Shocking revelations, bank heists, mysterious gifts, inappropriately tight bodysuits and an epic firefight will determine the fate of the Aurora Legion's most unforgettable heroes.

And maybe the rest of the galaxy as well.