This was an illustrated children’s book I had as a child in the mid sixties about a young boy who goes sailing with his father and looses his favorite marble in the cabin below. Years later as a young man, and with a child of his own, he discovers a shipwreck and finds his marble then restores boat
Many years ago I read a post from someone who was searching for this book as well and they thought the name of the sailboat was Sandpiper but I honestly don’t know if that was accurate or not. I don’t recall it being solved and I lost track of the inquiry.
I too am looking for this book. I recall the sailboat was named Sandpiper and the marble was blue with white clouds. Also the boy liked to sleep in the bow of the boat with the stored sails. Does anyone know the name of this book? I would like to find it for my 8 yr old.