In the Belly of the Bloodhound: Bloody Jack #4

The British crown has placed a price on Jacky's head, so she returns to the Lawson Peabody School for Young Girls in Boston to lay low. But the safe haven doesn't last--a school outing goes awry as Jacky and her classmates are abducted and forced into the hold of the Bloodhound, a ship bound for the slave markets on the Barbary Coast. All of Jacky's ingenuity, determination, and plain old good luck will be put to the test as she rallies her delicate classmates to fight together and become their own rescuers.