tom swift among the diamond makers

 So I have been reading this book about this person I think his name is Phil and he went sailing in this ship called the faithful and it was a freighter but they got caught in a terrible big storm and he and another friend ended up getting tossed onto a dessert island that was all sand dunes. It was big and there used to be a tree on this really big island well more than one tree. But they were all dead so these people the first thing they needed was food so the searched around the bed of the sea around because you may know that many things grow in shallow water that you can eat and they found clams and another was they found this water that had seeped through the sand and the ane had acted like a seeve so there was no salt in this sand.