Publisher's Synopsis
The heat is on for Hiccup as he is called to save the day once again in this fifth installment of the How to Train Your Dragon series.
Someone has stolen the Fire-Stone. Now that the volcano on Volcano Island has become active, the tremors are hatching the eggs of the Exterminator dragons! Can Hiccup return the Fire-Stone to the Volcano, stop it from erupting, and save the Tribes from being wiped out by the terrible sword-claws of the Exterminators?
