“I will leave you to work it out,” Grover beckoned to Roger; “I must run out to the zoo.” He was as eager and elated as a boy with a new football.
He beckoned to Roger who followed as his cousin got his hat.
“I want you to go to all the newspaper offices. Take a taxi. Get back issues for the past two weeks, maybe you’d better get them for three weeks back.”
“You know?——”
“I have two theories. I want to make sure which is right.”
“Do you really think I got the right meaning out of the hisses?”
“Precisely the correct meaning.”
“But it doesn’t tell me anything, cousin Grover.”
“Use my formula. Dig past appearances that can be falsified, to the truth. Marshal your facts, test each one, eliminate the impossible and what you have left is the truth.”
Telephoning to summon a taxi for Roger, the laboratory head was busy for a moment. Roger tried to employ the method just named.