A good thriller/mystery series would be the Pendergast Series by Preston and Child. They have around 20+ books in the series so far and I finished 2 of them recently, Relic and Reliquary. I suggest it if you like mystery about fantastical problems.

5

N0S4A2 by Joe hill ORRRRR Come Closer by Sara Gran both of which I read in the dark on rainy nights

3

A novel that’s a mixture of romance and mystery is simple pleasures by Clare Chambers.

2