Day 24 folks and the prompt is "Your Favourite Childhood book". This was a really easy answer ...
Anyway, My favourite of the books is the Haunted Mask.
Its about a young girl who wants to have the scariest costume and comes across this gruesome monster mask. Only problem is that when she puts it on, she starts to become the monster. Eventually she puts it on one too many times and the mask sticks.
Its seems she's doomed to become a monster forever.
Spoiler Alert - Its a really good book! :)