“I have an idea,” she proposed. “Almost all of the wishes we’ve made here have come true, haven’t they?”

“That’s so,” nodded Sunny.

“Let’s all close our eyes and wish hard that we knew who built the tree house for us,” Veve went on. “Maybe we’ll have our answer.”

The suggestion appealed to the other Brownies. All of the girls, including Eileen, closed their eyes, and for a moment concentrated very hard on the wish.

When they opened their eyes again everything was exactly the same. However, Mr. Vincent, who had been leaning against the oak tree, had an odd expression on his face.

“Do you youngsters really want to know who built your house?” he asked.

“Of course!” cried Connie.

“I should say so!” added Jane. “Eileen never will have any piece of mind as a Girl Scout unless she learns the answer today.”

“Was it Mr. Karwhite?” demanded Sunny, who began to suspect that the carpenter might be hiding something.

“It wasn’t Mr. Karwhite,” replied the carpenter.