The King is Dead -- Ellery Queen
Dead Until Dark-Charlaine Harris
Dark Symphony - Christine Feehan
The Dark at the Top of the Stairs -- Lilian Hellman
People of Darkness - Tony Hillerman
Those Who Walk in Darkness - John Ridley
Darkness at Noon -- Arthur Koestler
The Last Camel Died at Noon - Elizabeth Peters
(Andy, I think The Dark at the Top of the Stairs -- from a few posts back -- was written by William Inge, not Lillian Hellman.)
The Last Hurrag [Who wrote that, anyway?]
(bree, I think you're right. Been some years since I read -- or saw -- a play by either author. I will always associate Inge with Picnic.)
The Last Planet-Andre Norton
Planet of the Apes - Pierre Boule
Escape From a Twisted Planet-Harold Myra
Lonely Planet Micronesia - Kate Galbraith, Glenda Bendure, Ned Friary
The Heart is a Lonely Hunter-Carson McCullers
Hunter's Choice -- Alexander Lake
Sophie's Choice - William Stryon
Sophie's World - Jostein Gaarder
The Worldly Philosophers -- Robert Heilbroner
Chester the Worldy Pig-Bill Peet
The Sinister Pig - Tony Hillerman