As Nate the Great sets to work on his first international case, he searches for a lost "something" and saves the King of Sweden from a troublesome traveler.

When Rosamond looks into her crystal ball to read Nate the Great's future, she sees a new case for him to solve--her money box is missing and she wants him to find it.

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

Rosamond throws a birthday party for her cousin, Lizzy, and invites Lizzy's four pet snakes, Nate, and his dog, Sludge. Nate does not like snakes, but when one goes missing, he faces his fears and puts his detective skills to work to find the missing guest.

When he finds a torn piece of paper with only part of a word on it, boy detective Nate sets out to find the missing pieces.

"Nate the Great and his dog, Sludge, would like to take a break from detective work, but new cases--cases they do not want--await them"--

"¡Nate el grande vive a tope ! Cuando le piden a Nate que se haga amigo de un nuevo alumno, se muestra más que dispuesto...hasta que lo conoce. ¿Tendrá Nate que aguantar a un aguafiestas? ¿O su nuevo compañero será el alma de la fiesta?"-- Page 4 of cover. "When Nate is asked to befriend the new kid at school, he is more than willing, but Breckenridge Puffington appears to be a little nerdy. P.S. 38 is 100 years old and everyone is excited...