Suddenly Sally cried: “Look! Fred! Way off there to the left! There’s a bright gleam on the water!”
“A sun spot,” was the quiet response. “We often see them on the water. You don’t think Danny would set fire to his raft, do you?”
“No, but Fred!” She gripped his arm in her excitement. “I read about it in a magazine.”
“Read what?”
“About some chemical. I can’t remember the name. When you pour it on the water it throws back the light of the sun, makes the water shine.”
“Never heard of it.”
“Oh! Yes, Fred! It’s true! At first the chemical didn’t work so well. It disappeared too soon, but they mixed it with other chemicals, then it lasted for a long time. They were going to put small bottles of it on the rubber rafts. It just must be true!” She pounded him on the back.
“We’ll soon know.” He headed the plane toward that gleaming spot.
For a time the light gleamed brightly, then it began to fade.
“Oh, it can’t fail us!” Sally whispered. “It just can’t! It’s our last chance.”