Books in Tales of Ramion series

A storm summoned by the witch Griselda (unwitting tool of the Princess of the Night) attacks The Old Vicarage, and the boys’ father is carried off along with Griselda, Boris, the dwarves, and the boys’ mother. The capture of the boys’ father was an error: his love of rock and roll distorts the spell, and instead of being transported to the Princess, who wants Boris for her art collection, they are all diverted to the land of the Dancing Furies, where the spirit of the great rock god Jimi (Hendrix) possesses the father’s body. When he causes flowers to grow in the hair of the Dancing Furies, they reveal their true nature as goddesses of vengeance.