Immortal Promise By: Kim Loraine

While it is a standalone, reviewers suggest reading (Mattias and Elaine's story) beforehand, as the events of Immortal Promise take place shortly after that book's conclusion. Immortal Promise (Vampire Mates) by Kim Loraine - Goodreads

: Reviewers mention a "witch angle" and connections to Loraine's other works, specifically the Blackthorne Vampires series. Reviewer Highlights Immortal Promise by Kim Loraine

: A common critique is its length (roughly 96–122 pages). Some readers wished it were a full-length novel to allow for deeper world-building and more resolution for side characters. While it is a standalone, reviewers suggest reading

: Brandt’s heart starts beating as Claire’s stops, signaling she is his mate. While it is a standalone

: The audiobook version, narrated by Wen Ross and Kai Kennicott , is highly praised for its intense and complimentary performances. Series Context