work at that speed?
A couple of seconds more and Amartia had finished the first drawer. Then the second. In the third drawer she found a card 'History of Peculiar Sculptures'.
“That's it! That's the one. It must be!” said Muko
gleefully.
The code on the card was: 'N.II.Sigma.N.19'.
They all had a quick peep at it in order to memorise it. They were just in the nick of time because at that moment there was the sound of Mrs Agnesssi's footsteps coming towards them. They scampered into one of the nearby aisles where they flattened themselves against the shelves. Then it struck them. In their haste they'd left one of the catalogue drawers open!
Mrs Agnesssi reached her desk. The children listened intently. Instead of hearing her pull out her chair and sit down, there was an ominous silence. Then:
“Sssstrange!” she exclaimed.
She must have seen the drawer! The children held their breath. They heard her footsteps and the sound of the drawer