Forever Deep by Kimberly Kincaid

Firefighter Kellan Walker lives for two things: his fiancée and his family at Station Seventeen. But when a case surfaces with ties to Isabella’s past, he knows he’ll do anything to help her solve it—even if that means breaking all the rules.
With days to go before her Christmas wedding, Detective Isabella Moreno should be enjoying the happiest time of her life. But there’s a ruthless killer on the loose, and she’s been waiting far too long to serve justice.
As Kellan and Isabella team up to solve the case, the danger hits closer to home at every turn. Will they outwit the murderer who has haunted Isabella’s nightmares in time to make it down the aisle to their happily ever after? Or will the danger run too deep?

PLEASE NOTE: This novella is an extension of the first book in the Station Seventeen series, SKIN DEEP. While neither story contains cliffhangers, this novella does contain references to SKIN DEEP that could be considered spoilers. It is highly recommended that readers enjoy SKIN DEEP before curling up with FOREVER DEEP.