“Then I shall have to go alone,” cried Tibbs.
But at such a threat the others spread their wings, and prepared to follow him to the Castle of the Chill South Wind.
CHAPTER IV.
IN THE MIDDLE OF A THUNDERSTORM
THE three adventurous children had not flown very far on their way to the Castle of the Chill South Wind before they found themselves in the middle of a dense black cloud.
“Wherever did it come from?” asked Coppertop in a scared voice.
“I can guess whom it came from,” said Tibbs; “it’s sent by the Clerk of the Weather. He’s going to try and stop us reaching the South Wind. But he won’t!”
At this moment there came a low, dull rumble.
“Thunder!” cried Tibbs.