"I will," said Uncle Fred. "Better come along, Captain Roy," he went on. "We may all get a good surprise. I'd be glad to have the secret of the spring discovered."
The three men and Rose rode back to the hole Laddie and Russ had dug. Then Daddy Bunker, Uncle Fred and Captain Roy got off their horses to listen more closely.
"Do you hear it?" asked Daddy Bunker of the children's uncle.
"I hear water running somewhere under ground," answered Uncle Fred.
"So do I," said Captain Roy. "I shouldn't be surprised if this was where the water either ran into or out of our spring."
"We must get shovels and dig," said Uncle Fred. "When we dug back of the rocks it wasn't in the right place, I guess. Laddie and Russ, by accident, have found the very place we were looking for. I'm sure it's a good thing I brought the six little Bunkers out to Three Star Ranch."
"Don't be too sure yet," laughed Daddy Bunker. "We haven't found the answer to the riddle, yet."
They were going to ride back to the barn, to get picks and shovels, when Mrs. Bunker came hurrying out to them.
"Oh, Fred!" she called to her brother. "Something has happened!"
"What?" he asked.