Amazon has these select Kindle Boxed set eBookson sale for $0.99
WILD WEST Boxed Set: 150+ Western Classics in One Volume
HALLOWEEN Boxed Set:550+ Horror Classics, Supernatural Mysteries & Macabre Stories
BRITISH MYSTERIES Boxed Set
SCI-FI Boxed Set: 150+
CHRISTMAS Boxed Set: 400
FAIRY TALES Boxed Set: 1500+