There are 3 books in the Bastian Dennel, PI series. The newest book is Mask of Scarlet which came out in 2022.

1
The Midnight Show

Book cover of The Midnight Show
This mystery is the case of his dreams — and her nightmares.By day, Dayo Temitrope is a swinging singer, an up-and-coming star with a shining career ahead of her. By night, she’s . . . well, she’s not sure, but whatever she does leaves her every morning with sore feet…
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2
Gilded in Ice

Book cover of Gilded in Ice
Bastian has two new missing person cases. One is cold. The other is his own sister.

Since his success solving the Midnight Show disappearances, Bastian Dennel is sitting pretty. And with the new high-profile cold case that just got dropped in his lap, he’s pretty sure things will stay that…

3
Mask of Scarlet

Book cover of Mask of Scarlet
Bastian Dennel is a detective, not a matchmaker.

But he’s also not one to turn down easy mazuma. So when one of Innsjøby’s richest young sheiks hires him to find his so-called true love — a girl he’s met only once at a masked party — Bastian is on the…