The Water Shell — Gretchen Schields

Life on the beautiful island paradise of Kua-i-Helani is perfect and unchanging. Then one day the soldiers of the evil Fire Queen manage to steal the Water Shell that protects the island from the queen's rage. The queen creates a flaming volcano that covers the island with burning lava, and a huge tidal wave carries the island people out to sea. Only the child Keiki survives-and it is up to her to overcome the power of the queen and restore the island's beauty and tranquillity.