She sat down upon a broken-backed chair—the only one the room contained—and holding Toto in her arms waited patiently until the clock struck four.
Then she made the secret signal that had been agreed upon between her and Ozma.
Uncle Henry and Aunt Em waited downstairs. They were uneasy and a good deal excited, for this is a practical humdrum world, and it seemed to them quite impossible that their little niece could vanish from her home and travel instantly to fairyland.
So they watched the stairs, which seemed to be the only way that Dorothy could get out of the farmhouse, and they watched them a long time. They heard the clock strike four, but there was no sound from above.
Half-past four came, and now they were too impatient to wait any longer. Softly they crept up the stairs to the door of the little girl's room.
"Dorothy! Dorothy!" they called.
There was no answer.
They opened the door and looked in.
The room was empty.
