How To Twist a Dragon's Tale

The fifth book in the How to Train Your Dragon series.
 
Over on Lava-Lout Island, the volcano is ready to blow. Now Hiccup faces a terrifying Quest to Stop the Volcano Exploding, alongside his best friend Fishlegs and Humungously Hotshot the ex-Hero. But not only is Lava-Lout Island full of EXTERMINATOR DRAGONS, Hiccup's ARCH ENEMY is also lurking - and he's seeking REVENGE!