mies drank the Water of 'Blivion?" asked
Dorothy.

"Yes, my dear; it told all about it. And also it told me you were all
coming to my castle, and why."

"Then," said Ozma, "I suppose you know what is in my mind, and that I
am seeking a way to prevent any one in the future from discovering the
Land of Oz."

"Yes; I know that. And while you were on your journey I have thought
of a way to accomplish your desire. For it seems to me unwise to allow
too many outside people to come here. Dorothy, with her uncle and
aunt, has now returned to Oz to live always, and there is no reason why
we should leave any way open for others to travel uninvited to our
fairyland. Let us make it impossible for any one ever to communicate
with us in any way, after this. Then we may live peacefully and
contentedly."

"Your advice is wise," returned Ozma. "I thank you, Glinda, for your
promise to assist me."

"But how can you do it?" asked Dorothy. "How can you keep every one
from ever finding Oz?"

"By making our country invisible to all eyes but our own," replied the
Sorceress, smiling. "I have a magic charm powerful enough to
accomplish that wonderful feat, and now that we have been warned of our
danger by the Nome King's invasion, I believe we must not hesitate to
separate ourselves forever from all the rest of the world."

"I agree with you," said the Ruler of Oz.

"Won't it make any difference to us?" asked Dorothy, doubtfully.

"No, my dear," Glinda answered, assuringly. "We shall still be able to
see each other and everything in the Land of Oz. It won't affect us at
all; but those who fly through the air over our country will look down
and see nothing at all. Those who come to the edge of the desert, or
try to cross it, will catch no glimpse of Oz, or know in what direction
it lies. No one will try to tunnel to us again because we cannot be
seen and therefore cannot be found. In other words, the Land of Oz
will entirely disappear from the knowledge of the rest of the world."

"That's all right," said Dorothy, cheerfully. "You may make Oz
invis'ble as soon as you please, for all I care."

"It is already invisible," Glinda stated. "I knew Ozma's wishes, and
performed the Magic Spell before you arrived."

Ozma seized the hand of the Sorceress and pressed it gratefully.

"Thank you!" she said.

30. How the Story of Oz Came to an End

The writer of these Oz stories has received a little note from Princess