"That's all right," said Jimmy, "but what about you?"
"I shall go to bed," said Gerald, "with a bad headache. Oh, that's not a lie! I've got one right enough. It's the sun, I think. I know blacklead attracts the concentration of the sun."
"More likely the pears and the gingerbread," said Jimmy unkindly. "Well, let's get along. I wish it was me was invisible. I'd do something different from going to bed with a silly headache, I know that."
"What would you do?" asked the voice of Gerald just behind him.
"Do keep in one place, you silly cuckoo!" said Jimmy. "You make me feel all jumpy." He had indeed jumped rather violently. "Here, walk between Cathy and me."
"What would you do?" repeated Gerald, from that apparently unoccupied position.
"I'd be a burglar," said Jimmy.
Cathy and Mabel in one breath reminded him how wrong burgling was, and Jimmy replied:
"Well, then—a detective."
"There's got to be something to detect before you can begin detectiving," said Mabel.
"Detectives don't always detect things," said Jimmy, very truly. "If I couldn't be any other kind I'd be a baffled detective. You could be one all right, and have no end of larks just the same. Why don't you do it?"
"It's exactly what I am going to do," said Gerald. "We'll go round by the police-station and see what they've got in the way of crimes."