“We haven’t decided about Hallowe’en,” she reminded them.

“That’s so,” agreed Fred, with relief. “Are we going to have a party?”

“Mother doesn’t want Ward and me to dress up and just go around,” said Jess. “So I think we’d better have a party—just us, you know. We don’t need any one else.”

The six members of the Riddle Club smiled at one another. They had the best of good times when “just us” and no outsiders were invited. Weren’t they back from a summer in camp where they proved their theory once more? Their tanned faces and bright eyes showed what a healthful summer it had been and their good spirits spoke for their happiness.

“It’s our turn to have a party,” said Margy Williamson, eagerly. “Polly and Artie had us Hallowe’en last year. We can have the kitchen at our house and do anything we please.”

“I thought you’d come to our house; but it’s all right that way,” said Polly. “Shall we dress up?”

“Oh, I don’t think it’s one bit of fun unless we dress up and wear false-faces,” declared Margy.

“We’ll know each other—can’t help it, with only six of us,” demurred Fred.

“That’s all right—we can pretend to be fooled,” said Jess Larue.

So it was decided to wear costumes and false-faces.