Hermione Granger and the Potions Master's Riddle

Hermione Granger is a ten year old girl, a very intelligent, clever and smart girl. She suffers from a condition called Hyperthymesia, which causes her to remember everything perfectly. She recieves a diary enchanted by Albus Dumbledore, to pen down every single thing that happens to her during the day, to help her with the problem. It is a secret which contains all her secrets.