The Warlock Rock - Warlock of Gramarye, #10

THEY ROCK!  THEY ROLL!  THEY'RE AFTER YOUR SOUL! A plague of mysterious singing stones have flooded the kingdom of Gramarye. Emanating beautiful, mesmerizing music of all sorts, they're capturing the eyes -- and ears -- of the good folk, young and old alike. Entertaining, yes. But what exactly are these strange, musical rocks? Where did they come from? Why do they have such influence over the thoughts and feelings of everyone who hears them? And to what purpose? Lord High Warlock Rod Gallowglass, accompanied by his wife and children, intends to see the stones in concert and find out-before his kids sell their souls to rock & roll...