The Fortress of the Treasure Queen

The story revolves around a young hero who embarks on an adventurous journey to find the treasure hidden in the Fortress of the Queen. He encounters numerous perils and enemies, and uses his intelligence and courage to overcome obstacles and challenges. The book is filled with suspense, mystery, and twists, keeping the readers hooked till the end. A hidden door. A magical staircase. Discover the world of Droon! With nearly 2 million books in print, this Little Apple series is H-O-T, hot. The SECRET is out - DROON is the series that kids, parents, and teachers are talking about! Ko is back in power -- and nothing in Droon is safe! His beasts have found a lightning-powered submarine hidden in the secret Fortress of the Treasure Queen. Now Eric and his friends have to stop Ko before he destroys Jaffa City. But first they'll need help from their worst enemy -- Lord Sparr. If he can be trusted...