I'd never heard of the shark calling before. This is a beautifully choreographed story blending the local islander languages and traditions with a modern girl Izzy in a family drawing on dual cultures, equally. Izzy is a hero on a symbolic journey, who is tested. She's even carrying her dead twin brother's ashes back to the island to complete the ceremony. 10-12 year olds will be 'hooked' by the diving action and the island adventures.I liked the detail and felt I was there. 'Poetic' blending of fact and fantasy in the mixed formats and the content. Wolfer's sister lives in the Papua New Guinea islands and it shows in the way the local words are slipped in, but explained in context within the story. Authentic setting , food and diving action. Enough drama to keep young readers involved. I intend recommending 'The Shark Caller' to family friends working in the Solomon Islands, as there is little easily accessible children's literature with local islander settings with which their children can identify. 'The Shark Caller' could fit under several curriculum requirements. A significant book, worth reading by the general adult reader too. This is the best book for 10-ish I've read this year.