How does Rhyme and Reason play an important part in the Phantom Tollbooth:

   One day a young prince from across the sea soon to be king built a city that would eventually be The Kingdom of Wisdom. The king would later then have two sons that had many ideas, some like making other cities and thats how the cities of Dictionopolis and Digitopolis came along.
   Though as time came along, the king found a random basket in his garden, inside of it were twin baby girls. The king happy as he could be with these two girls naming one Rhyme and the other Reason.
  Later on the two sons had gotten into arguements about whats better, Numbers or Words, coming to a decision they asked their sisters Rhyme and Reason. Both Rhyme and Reason stated that numbers and words were equal. The brothers hated what their sisters had said so they banished them from the kingdom and left them in a castle in the sky, THEN LONG COMES MILO TO SAVE THE PRINCESSES FROM THE CASTLE AND BRING THEM BACK HOME.

Milo- main character in the book

Two Brothers: Azaz and Mathemagician

Azaz- Son of the king, ruler of the realm of letters and word, sends Milo to get Rhyme and Reason back

Mathemagician- Son of the King, lives in a world of number, unlike brother had doubts on releasing thier sisters from the castle
 
Twin Sisters - Rhyme and Reason