After Tim Johnston’s Descent, you might want to wrap your mind around these varied thrillers (listed chronologically):
Dracula – Bram Stoker
Rebecca – Daphne du Maurier
And Then There Were None – Agatha Christie
In Cold Blood – Truman Capote
The Andromeda Strain – Michael Crichton
The Shining – Stephen King
Coma – Michael Crichton
Presumed Innocent – Scott Turow
The Silence of the Lambs – Thomas Harris
The Alienist – Caleb Carr
The Da Vinci Code – Dan Brown
The Girl with the Dragon Tattoo – Steig Larson