Frank and Joe are excited to learn that Thrill Kingdom, their local amusement park, is having a contest for kids to design a brand-new ride. And they're even mo

When the Titan Hyperion turns up the heat and starts throwing fireballs around, Olympians Zeus, Poseidon, Hades, Hera, and Demeter search for a mysterious Olymp

When wildlife celebrities come to Bayport Elementary, Frank and Joe are soon on the case of a missing snake in this Hardy Brothers Secret Files adventure. Jumpi

Third graders travel through time to keep history on track! Abigail loves Mondays, and so does the rest of class 305. That's the day Mr. Caruthers asks them coo

A young Poseidon must triumph over aquatic terrors in this Heroes in Training adventure. The merciless Cronus and his Titan buddies are in hot pursuit of Zeus,