27/35 It was impossible to locate the crags he must have leaped to reach his spectacular decision. They were shrouded in mystery. "See, even you mark the clues with perfect logic." "A farm on a hill," exclaimed Garry, "is of course a clue with absolute individuality. So is a wood and a river." "So," supplemented Kenny with the calm, unhurried air of one who scores an unexpected point, "is a postmark on a letter." Startled, Garry reached for the envelope. Kenny put it in his pocket. |