Ellery Queen Jr. Mystery Books in Order

Djuna and his dog Champ stumble into a puzzling case where a clue nicknamed the Black Dog keeps turning up. Following hints across the city, Djuna has to spot what adults ignore and catch the culprit before the trail goes cold.

A small mystery grows into a bigger one when Djuna and Champ chase a clue tied to the Green Turtle. With false stories piling up and a missing piece of evidence in play, Djuna races to identify the real thief and the real reason.

Djuna and Champ investigate a baffling problem linked to the Red Chipmunk, a nickname that hides more than it explains. As suspects change their stories, Djuna follows the simplest clues to uncover who is tricking everyone, and how.

A clever scheme leaves everyone looking in the wrong direction, until Djuna and Champ notice the detail connected to the Brown Fox. The young sleuth pieces together the real timeline and tracks down the person counting on adults to miss it.

Djuna and Champ take on a new case when something valuable goes missing and the only lead is a shadowy name, the Golden Eagle. Street-smart observation and careful logic help Djuna untangle suspects and protect an innocent person.

A mystery involving the White Elephant sends Djuna and Champ into a trail of clues, rumors, and mistaken assumptions. Djuna keeps his head, follows the evidence, and proves that the biggest “obvious” answer is often the wrong one.

When a case tied to the Yellow Cat turns strange, Djuna and Champ have to separate rumor from fact. With quick thinking and a sharp eye for small tells, Djuna figures out who is staging the confusion and why.

Djuna and Champ chase a case where the obvious clue is also the biggest distraction, a true blue herring. By paying attention to what doesn’t fit, Djuna uncovers the real plot and the person hoping nobody looks past the bait.

Gulliver Queen thinks a showy magician is just entertainment, until the tricks start covering up a real crime. As the story turns serious, Gulliver follows simple clues, asks the right questions, and uncovers what the “magic” is hiding.

Ellery Queen’s nephew Gulliver finds himself in the middle of a mystery when someone disappears and the adults don’t see the danger yet. With only a few clues and a lot of bluffing around him, Gulliver has to solve the case before it’s too late.

A puzzling case marked by the Purple Bird pulls Djuna and Champ into a hunt for the truth behind a clever deception. As suspects try to steer him wrong, Djuna relies on observation and logic to land on the one explanation that holds.