After their village is attacked, a young brother and sister set off on a dangerous quest to save their captured family and friends - and free their land from the Sedah invaders. Where are Ethan and Lily's parents being held? And where have the Sun Sword and its magical gems been hidden? Joined by their friend Saxon and the determined Princess Roana, Ethan and Lily must solve puzzles and riddles, escape legendary sea monsters and outwit bandits along the way. But the greatest threat to the children is the sinister Sedah tracker, Sniffer, who is close on their trail ... Can the four friends find the Sun Gem - before the Sedah can find them?