turned their heads back to look at him, he had vanished.
As they walked across the stone floors, their footsteps sounding loud and somehow eery, Paidia was talking as usual.
“Hey! Where do you think we're going? I remember there was a Mr Pythagoras who was a Greek mathematician, but I don't really remember anything else about him.”
Suddenly it came back to Muko. Of course! He'd seen a picture of Pythagoras once, most likely in a book. He was old in the picture, like he was now, but the striking thing about him