Rita and the Fwobble

I'm writing a short story at the moment called 'Rita and the Fwobble.' Rita is struggling at school - whenever there's a test her brain turns to mush. That is, at least, until she meets the Fwobble in her garden shed. A small, cow like animal with pink spots on his back, he eats her school pen and burps it back up, leaving it with more than a hint of magic. Rita uses the pen and finds that she knows the answer to any question. It doesn't take her long to forget who is really to thank, and an argument with her best friend leads to her snapping the pen in half to prove that it's her brains that are the reason for her change in fortunes. Oh dear. The loud bang and puff of smoke at the bottom of the garden suggest that that was not a particularly wise thing to do. Especially considering the school quiz is coming up tomorrow. I'm looking forward to finishing this one - I've been enjoying writing it. Shouldn't be too long before I can start redrafting.