The Dragon Defenders Book 2

Months have passed since evil boss The Pitbull stole a dragon's egg from Paddy and Flynn's paradise island. By now, it should have hatched. But when he discovers that's nothing more than an egg-shaped rock, The Pitbull flies into a terrible rage and plots revenge. Will Paddy and Flynn be able to stop him this time? And why is Briar - The Pitbull's niece - helping them?