The Naturalist - Andrew Mayne

The Naturalist is the first novel in the Naturalist series. This book is available through kindleunlimited.

Very highly recommended.

The Terminal List - Jack Carr

The Terminal List is the first novel in the Terminal List series.

Very highly recommended.

Bloody Genius - John Sandford

Bloody Genius is book 12 in the Virgil Flowers series.

Very highly recommended.

Black Light - Stephen Hunter

Black Light is the second novel in the Bob Lee Swagger series.

Very highly recommended.

Quantum: A Thriller - Patricia Cornwell

Quantum is the first book in the Captain Chase series.

Recommended if you're a space nut. It was not my cup of tea, which is sad because I used to love Patricia Cornwell.