In the Laidley Hundreds, dangerous wild dragons roam the Highlands. But dragons aren’t born bad – just naughty! When Ava and Jack’s parents agree to foster two young dragons, the siblings can’t believe their luck. But teaching a mischievous pair of dragons how to behave isn't easy . . . Follow Jack, Ava, and their dragons Graun and Fafnine, on three troublesome adventures! The Trouble Collection includes: Naughty Dragons Make Trouble! Naughty Dragons Try School! and Naughty Dragons Fire Up!