Ingo. Can you resist the call of the Deep?

Everything is wet and shinning with mist. The rocks hidden, the sea hidden. Everything slippery and dangerous...the sea pulling me like a magnet. Swimming, surfing, exploring - Sapphire and her brother Conor enjoy life by the sea in Cornwall. But why does Conor start disappearing for hours on end? And who is the mysterious girl talking to him on the rocks? Following Conor down to the cove one day, Sapphire discovers Ingo - an exciting and dangerous world beneath the waves, where all you breathe is adventure...