Gregory O. Smith

The five Wright cousins have a submarine, and they know how to use it! But the deeper they go, the more mysterious Lake Pinecone becomes. Something is wrecking boats on the lake. It’s “up periscope” and “man the torpedoes”, as the fun-loving Wright cousins dive in....

The five Wright cousins are having a blast four-wheeling in the desert as they look for a long-lost Spanish treasure ship. And who wouldn’t? There’s so much to see! Palm trees, hidden treasure, UFOs, vanishing stagecoaches, incredible hot sauce, missing pilots. Wait....

Meet the five Wright cousins in their first big mystery together. I mean, what could be more fun than a treasure hunt with five crazy, daring, ingenious, funny and determined teenagers, right?

The Wright cousins are helping to restore a stone fort from the American Revolution. They expect hard work, but find more - secret passages, pirates, dangerous waterfalls, a new girl with a fondness for swordplay. Join the cousins as they try to unravel this puzzling mystery....

In this 5th addition to the fun and exciting Wright Cousin Adventures series, teenagers Robert and Tim Wright accidentally become America's top two secret agents--the notorious Kimosoggy and Toronto....

A mysterious map holds the key to the location of an ancient treasure city. When the Wright cousins set out on horseback to find it, they run headlong into desert, flash floods, treacherous passages, and formidable foes....