little green door was at the very back of the house, toward the
fields, in a room opening out of the kitchen. It was called the
cheese-room, because Letitia's grandmother, who had made cheeses, had
kept them there. She fancied she could smell cheese, though none had
been there for years, and it was used now only for a lumber-room. She
always sniffed hard for cheese, and then she eyed the little green
door with wonder and longing. It was a small green door, scarcely
higher than her head. A grown person could not have passed through
without stooping almost double. It was very narrow, too, and no one
who was not slender could have squeezed through it. In this door
there was a little black keyhole, with no key in it, but it was
always locked. Letitia knew that her Aunt Peggy kept the key in some
very safe place, but she would never show it to her, nor unlock the
door.

"It is not best for you, my dear," she always replied, when Letitia
teased her; and when Letitia begged only to know why she could not go
out of the door, she made the same reply, "It is not best for you, my
dear."

Sometimes, when Aunt Peggy was not by, Letitia would tease the old
maid-servant about the little green door, but she always seemed both
cross and stupid, and gave her no satisfaction. She even seemed to
think there was no little green door there; but that was nonsense,
because Letitia knew there was. Her curiosity grew greater and
greater; she took every chance she could get to steal into the
cheese-room and shake the door softly, but it was always locked. She
even tried to look through the key-hole, but she could see nothing.
One thing puzzled her more than all, and that was that the little
green door was on the inside of the house only, and not on the