AustLit

'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?'

Source: Publisher's blurb.

'Ethan, Lily, Saxon and Roana have cracked the code, only to find that the Moon Pearl is being sent by ship to the land of the invaders. The four children must give chase to save the precious stone!

'The fisherfolk can help. So can Saxon's mysterious acquaintance, Fox, a smuggler who will do anything for a pouch full of Roana's gold. But the sea is far more dangerous than the land. There are sea monsters and wild storms - not to mention the deadly warship they are chasing.

Will Fox's stealthy black sloop, the Owl, carry them to safety, or will the Moon Pearl remain in the hands of their enemy?'

Source: Publisher's blurb.