Summer with dragons

Mari Jones is looking forward to spending a quiet summer on the beach with her secret little dragon, Flicker. However, she has no idea that a few unexpected visitors will turn her plans into chaos. Not only has the entire dragon family returned to the coast to lay their eggs in a cave, but a scientist, Dr Griff Griffiths, has also appeared and started snooping around the little creatures. When he finds and steals Flicker's precious egg, Mari and her friends must organise a rescue mission before it's too late.
Will the children manage to protect the dragon's secret, or will the whole world find out about it?