The Protectorate, book 2: Chaos Vector
Megan E. O'Keefe2020

Sanda and Tomas are fleeing for their lives after letting the most dangerous smartship in the universe run free. Now, unsure of who to trust, Sanda knows only one thing for certain - to be able to save herself from becoming a pawn of greater powers, she needs to discover the secret of the coordinates hidden in her skull.

But getting to those coordinates is a problem she can't solve alone. They exist beyond a deadgate - a sealed-off Casimir gate that opens up into a dead-end system. And there's a dangerous new player who wants the coordinates for their own ends - a player who will happily crack her open to get them.