Born into nobility, Helaine can't get over the fact that Jenna, a mere peasant on their home world, is her equal. Their constant bickering convinces the four magic-users to take a much-needed vacation. Hoping for a relaxing time at the beach, they go to Brine, a water-filled world with floating islands and telepathic sea creatures.

What's supposed to be a relaxing holiday turns into chaos when pirates attack the helpless natives and capture Jenna and Pixel. Using magic is difficult on this outer-rim planet and Pixel's fate becomes grim when he is thrown overboard to a bloodthirsty sea monster. Meanwhile, Jenna-inexperienced in battle and separated from her friends-must rely on innovation and instinct to outwit the pirates, who are forcing her and the other captives to tunnel dangerously close to the sweltering core of an active volcano.

שם הספר
Book of Reality (Diadem Worlds of Magic)