Trial by Leviathan by Blaze Ward

A test run of an experimental weapon turns unexpectedly deadly when Marrakesh and its crew run across a Wronlori Leviathan, who charges in to destroy them.
A game of cat and mouse ensues, the two ships hiding in a deep nebula.
Captain Boru could leave the area, but he wants a bit of revenge, as well as a fight against a bigger battleship.
Trial By Leviathan, the exciting first book in the Operation Marrakesh series, takes the reader on a thrilling military space adventure. Be sure to read all the books in this series!