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 . . . .
Tony Abbott is the author of more than ninety books for young readers, including THE SECRETS OF DROON series; middle-grade novel KRINGLE; and THE HAUNTING OF DEREK STONE series. He was the recipient of the 2006 Golden Kite Award, as well as the 2009 Edgar Award. Tony was born in Ohio, and now lives with his wife and two daughters in Trumbull, Connecticut. Visit him online at www.tonyabbottbooks.com.