In The Phantom Tollbooth, what does King Azaz and the mathmagician tell Milo after he returns?

In
, Azaz is king of Dictionopolis and the Mathemagician, his brother, is the
ruler of Digitopolis; they have never agreed on anything since the two princesses, Rhyme and
Reason, were banished to the Castle in the Air. Milo sets out with his dog, Tock, and the Humbug
to recover the princesses.

After many adventures, they convince
the...

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