"Mine Twice Over" is a children's story about Jimmy and his boat.
There was once a little boy named Jimmy who decided one day to take his pocket money, buy some balsa wood which is easy to carve and very lightweight, cloth, string and paint and make himself a model sailing ship. When it was completed, Jimmy was ever so proud for he had made it all himself! Jimmy took his model boat to school and showed it to his teacher, Mr. Jones.
"What a lovely boat!" said Mr. Jones. "We will show it to the Principal" who was the head teacher and director of the school. The Principal said, "What a lovely sailing ship!, I'd like to show it to the whole school!" All the other children thought it was great and the Principal placed it on the display table for all to see.
When the afternoon bell rang, Jimmy raced into the assembly hall to get his boat. To his horror, he found that it was gone. Someone had stolen it and he thought he would never see his boat again. The story continues.