Kirlia

Carlos Soames is a tightwad. He'll do anything to save a little cash and discovers that it's cheaper to order his new contact lenses on-line. The site that he buys from doesn't do English but Carlos thinks he's got it covered.
When his order arrives Carlos soon realises that his vision is rather better than he'd expected and he's able to see into a whole new world.
It turns out however, that the things that Carlos is looking at don't want to be seen...

Kirlia is the third of Uncle John's Bedtime Tales. Reader discretion is advised.