different levels of the library could be seen. In the centre of the library was an impressive curved staircase leading to the second level and it was here, in the very heart of the building, that the Tree of Wisdom had inserted its roots through the ceiling and was drawing life from the books, the cabinets and the library, its coils connecting directly with the stairs and forming part of the structure. On each of the levels were row upon row of bookcases, their shelves bowed by huge, heavy mathematical tomes. Order reigned; everything was in its correct place. There were lots of pupils sitting at the tables, intent on their studies, but none of them were from the first class.
Pythagoras led the way to the far end of one of the wings of the building. He took the stairs to the level for Geometry and Topology, and found the alley for Ancient Geometry. It was obvious he knew exactly where to go. He took hold of a ladder, climbed up, and grabbed a massive volume entitled 'Beauty and Perfection of the Pythagoras theorem'. It was a heavy book but he handled it reverently, almost tenderly, with an expression of great pride on his face.
He descended the ladder and carried the book to a nearby desk, motioning to the children to gather round. Then he opened the book.