The Shed Code Hidden in the Sundial
On the first morning of gardening club, the tool shed was locked and nobody could find the key, but an index card taped to the combination lock explained what to do. It was written in the teacher's handwriting, and it read, "The code is where the shadow falls at nine, ten, and eleven. Do not hurry."
The club members stood in a puzzled circle around the stone sundial in the middle of the garden, whose metal pointer cast a thin gray shadow across a ring of carved numbers. "At nine o'clock, the shadow sits on seven," announced Tavia, who was holding the card.
"But it is already nine fifteen," said Kofi. "We have missed the right moment."
"Maybe not," said Tavia. "The clue mentions nine, ten, and eleven, and since a sundial can only tell time while the sun is shining, we have to be patient and keep watching it."
So they waited, weeding the carrot rows and watering the lettuces while keeping one eye on the pointer. At ten o'clock the shadow touched the carved four, and at eleven it reached the two, so Tavia wrote the digits down and tried 7, 4, 2 on the lock.
Click. The shackle sprang open and everyone cheered, and inside the shed a second note dangled from a rake. It said, "Good gardeners learn to be patient, and the best ones learn to look." The teacher, Ms. Ford, emerged from behind the compost bin, grinning, because she had been standing there the entire time.