ISBN-13: 9780099285625 / Angielski / Miękka / 2002 / 160 str.
Pobby and Dingan live in Lightning Ridge, New South Wales, the opal capital of Australia. They are friends with Kellyanne Williamson, the daughter of a miner: indeed only she can see them. Ashmol Williamson, Kellyanne's brother thinks his sister should grow up and stop being such a fruit loop - until the day when Pobby and Dingan disappear.