In this novel,three siblings named Julian,Dick and Anne were getting a chance to meet and spend time with their cousins Georgina(George) and her dog Timmy.Georgina decided to take Julian ,Dick and Anne to Kirin island to show them the wreck.Luckily, they found treasure on the wreck but they also saw some people trying to steal the treasure .
Julian and Georgina were trying to hide the treasure so that the theifs dont take it .Dick and Anne hid themselves then they saw that Julian and Georgina were locked in the room.Then when the theifs were not able to find the treasure and they went, Dick climbed the old well to rescue Julian and Georgina.