“Please can you escort us into the library?” asked Muko,
but Pythagoras frowned angrily at him and started pushing past.
Paidia, however, came up with another one of her brilliant ideas. She turned to Muko. “It's just SO SAD,” she whispered emphatically, making sure that Pythagoras could hear every word, “that we won't be able to investigate all those interesting variations of the proofs of the Pythagoras theorems.” Then, with a theatrical gesture of resignation, she turned away from the library entrance “We have to go, Muko, seeing as NO- ONE will help us get access to the library.”
Pythagoras took the bait. He turned to the children, his face glowing with excitement.
“Please excuse my earlier testiness.” He inclined his head in a little bow. “I know the perfect book for you. Come with me, children. We shall go into the library together.”
Mrs Agnesssi couldn't argue, but her steely gaze followed the four friends. They could feel her eyes on their backs.
The library was an extraordinary place. Every time the children visited it they were overwhelmed. There were cavernous spaces with immensely high ceilings from which