The Spiderwick Chronicles: The Brothers Three

This fan fiction is about three Spiderwick brothers, trying to save the Invisible World of the fairies from the evil Darkgale family and their plan to capture the fey.

Edward "Ed" Spiderwick
A 12-year-old boy who was given a blessing of the fairies: the ability to be impervious to fairy abilities and things that were made by the fairies. His blessing proves useful in fighting the evil fey that were captured by the Darkgales. He is also the one to receive the Sight, and also the last one to cast the Glamour Charm to go outside the house. A running gag is his inability to use charms correctly; the first ten times he tried a charm, it caused an explosion.

Prologue
Fairies are hidden to the naked eye. They use glamour to hide themselves.