The Lost Duke - Royal Blood, #3

Garhan Dante Aviatrov, a name erased from history. His existence will test everything Keiran Sipesh thinks he knows about Athan's involvement with his family. With most of his family's true past hidden from him, Keiran has been left with more questions than answers.  Now, his aunt, Alerian Queen Adira Aviatrov, will reach out to him.  Needing answers, Keiran is eager accept her invitation. Being one of the few who know the truth about Athan's dealings with their family, however, has left Adira bitter.
She'll do anything in her power to keep another vampire from ruling. Adira has no qualms with turning on family, and Keiran will be no exception.