When Gina's mom, a local newspaper reporter, gets a ransom note at work that claims something belonging to the whole town has been stolen, Alec and Gina juggle the case with their schoolwork.
A sixteen-year-old boy arranges a housesitting job for the summer, but he starts acting strangely after his family moves in, and his sister begins to suspect they are not supposed to be there.
Ten brief cases allow the reader to match wits with ten-year-old crime-buster, Encyclopedia Brown, as he locates stolen jewels, retrieves a stuffed tiger, and more. Solutions are included at the back of the book.
A family, snowbound in a vacation cabin, discovers adventure in surrounding wild life, three children they find in the snow, and a search for a lost recipe.
Wilma Tenderfoot, a ten-year-old orphan who lives at Cooper Island's Lowside Institute for Woeful Children, dreams of escape and of becoming the apprentice of the world-famous detective Theodore P. Goodman, whose every case she follows devotedly in the newspaper.
When the serum of the 39 Clues goes missing, thirteen-year-old Dan Cahill and his older sister, Amy, do whatever it takes to retrieve it. Includes cards.
Emma is shocked to learn she has a twin sister, Sutton, but on the day the girls are supposed to meet, Sutton is killed, and Emma risks everything to slip into her twin's life and try to bring the killer to justice.