Nate the Great and his dog Sludge look for Annie's housekey which has mysteriously disappeared.

My 1st graphic novel

Penny feels guilty after taking a beautiful blue marble that she sees in Mrs. Goodwin's grass, but gets a pleasant surprise when she goes to return it the next day.

When she cannot find her favorite stuffed toy, a young girl asks her mother, father, and older sister for help.

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

"When a boy's abuela accuses him of being careless with his beloved Bongo, he devises a trap and catches the toy thief red-handed"--

When his toothbrush goes missing, Dog's friends help him look for it.

When three leprechaun statues disappear just before St. Patrick's Day, Bradley, Brian, Nate, Lucy, and other friends follow clues in order to prove that Lucky O'Leary is innocent of the crime.

When Duck goes missing, a boy's favorite activities lose their appeal and he comes to know that he needs Duck just as much as Duck needs him.

One mitten can do many things, but when the second mitten is found, it is time to go outside and have fun.