The Drowned Heir by Jennifer R. Donohue

When her uncle dies at sea, a third child with no place in society undergoes a ceremony to house his spirit and take his role, diminishing the family’s loss. But her uncle’s spirit hasn’t settled the way it’s supposed to, and will not content itself with shore-bound business. Her uncle’s spirit insists, angrily, that it was not just a storm that killed him and wrecked his ship, not a rogue wave; it was an unthinkably large monster. Then his lover comes knocking with news of an adult son who has set sail along the same shipping lane, and dead uncle and living niece must work together to save a son neither of them knew existed.

Burn Up In Victory by Jennifer R. Donohue

When her brother Marco unexpectedly elopes, Serafina of House Galeazzo is left alone with their distant father and domineering mother. Forced to step up and take part in the magical dueling society that Marco always shielded her from, Serafina must find her footing and manage to move forward, all the while wishing she escaped with her brother. Lorenzo of House Valier was Marco’s best friend, and had no idea that he was going to vanish into thin air. Now he’s left without his closest confidante since childhood and, and that damnable sister left to fill that hole in their dueling circle. Why couldn’t she have been the one to depart? As the circle works to hone their skills, practice and occasional bloodshed bring them closer together. Serafina learns more about her magical spark, unable to disentangle herself from Lorenzo, until one fateful night after a tournament when he is the only place she can turn.