Nightshade (Nightshade, #1; Nightshade World, #4)
Andrea Cremer
Night World, No. 2 (Night World, #4-6)
L.J. Smith
Sweeper (Harris Brothers World, #4)
Amy Daws
Found (House of Night Other World, #4)
P.C. Cast
Natural Witch (Demon Days, Vampire Nights World #4)
K.F. Breene
Dark Angel (Night World, #4)
L.J. Smith
Earth Called: Tales of a New World (Tales of a New World, #4)
P.C. Cast
Jack Kirby's Fourth World Omnibus, Vol. 1
Jack Kirby
Naples '44: A World War II Diary of Occupied Italy
Norman Lewis
Thanatos (Guardian Security Shadow World #4)
Kris Michaels
No Time for Mourning (The Borrowed World #4)
Franklin Horton
Assembling California (Annals of the Former World, 4)
John McPhee
Playing For Keeps (Alpha World, #4)
Daniel Schinhofen
Storm Season (Thieves' World, #4)
Robert Lynn Asprin
Best Served Cold (First Law World #4)
Joe Abercrombie
Helping a Friend (The World, #4)
Jason A. Cheek
Brambles and Thorns (The Infinite World, #4)
J.T. Wright
Spark (Galaxy Alien Mail Order Brides, #1; Intergalactic Dating Agency, #4; Qurilixen World)
Michelle M. Pillow
A Stone-Kissed Sea (Elemental World #4)
Elizabeth Hunter
The Modern Age: From Victoria's Empire to the End of the USSR (The Story of the World, #4)
Susan Wise Bauer