When two of Australia's most popular fantasy authors collaborate, The Warlock's Child weaves a new and exciting brand of magic. The Invincible has been attacked, and all seems lost. Dantar's only escape from his enemies is through the foul-smelling sewers of Savaria. Velza's plans to save him are soon thwarted by three enormous dragons threatening to set fire to the city. Can Dantar and Velza deliver the city from danger?