Calibans Krieg by James S.A. Corey

Set amid rising tensions between Earth, Mars and the Belt, a disparate cast — a shrewd UN politician, a battle-hardened Martian marine, a desperate botanist searching for his missing daughter, and the crew of a small freighter — must unravel a conspiracy after a terrifying new weapon created from the alien protomolecule appears, threatening to spark all-out war; as they chase leads across moons and stations they confront corporate deception, military brinksmanship and the horrific consequences of untested bioweapons while racing to rescue the child and stop a catastrophe that could reshape human civilization.

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