Soon her eye fell on a little glass box that was lying under the table: she
opened it, and found in it a very small cake, on which the words `EAT ME’ were
beautifully marked in currants. `Well, I’ll eat it,’ said Alice, `and if it
makes me grow larger, I can reach the key; and if it makes me grow smaller, I
can creep under the door; so either way I’ll get into the garden, and I don’t
care which happens!’

source: Alice’s Adventures in Wonderland