Now You See It . . . (Magic Carpet Books)

the long version

Wendy isn't as blind as a bat--there are bats that can see better than she can. Which is why, when her new glasses break, she's all too happy to wear the dorky pair of sunglasses she finds on the lawn. They seem to match her prescription, and that's all that matters if she's going to be able to make it through her school day. But the glasses correct her vision too much. She begins to see things that no one else can see: cheerful corpses, frightening crones disguised as teenyboppers, and portals to other worlds--places where people are all too aware of the magical properties of her new shades . . . and will do anything to get them.