North and Martin Abduction Mystery Series by James Hunt

When the morning after a slumber party reveals two missing girls, a newly minted Detective and a young veteran are assigned the case. Recently partnered, the pair of detectives must set aside their troubled pasts to recover the pair of girls who may have been coerced by a stranger who had kidnapped before.

The day before Detective Jim North is set to be married, an entire busload of children goes missing. Jim and his partner, Detective Kerry Martin, are called to assist in finding the missing bus. But a closer look at the case reveals a connection to Jim’s past that he had hoped was buried forever.