Through a series of letters a boy, his parents, and others discuss Camp Wannaleavee, the camp bully, and Plantzilla, who has been forbidden to come but misses his caretaker and arrives in time to become the camp hero.
Three mice who live in a department store are dismayed when they are accidentally shipped in a care package to a ten-year-old boy in a summer camp in Vermont, but after joining in a few of the activities they find that they like camp life.
Winnie heads off to camp looking forward to a fun summer filled with laughter, friends, and swiming, but her life becomes too complicated when one little fib leads to a not-so-little lie.
Billy is willing to put up with bad food and strange counselors, but when his fellow campers start to disappear, his stay at Camp Nightmoon turns into a nightmare.
Spud and Joe are determined to catch the mysterious prankster who keeps getting them into trouble when they spend their summer at Camp Custer with Mary Frances Hooley and Lamar J. Spurgle.