How much can we learn about normal visual perception and cognition from a malfunctioning visual system? Quite a lot, as Michael McCloskey makes abundantly clear in this book. McCloskey presents his work with AH, a college student who has an extraordinary deficit in visual perception. When AH looks at an object, she sees it clearly and identifies it readily; yet she is often dramatically mistaken about where the object is or how it is oriented. For example, she may reach out to grasp an object that she sees on her left, but miss it completely because it is actually on her right; or she may see...

Space is vast. No matter how much firepower you have, you can't defeat your enemy unless you know exactly where and when to strike. That's why Lieutenant Emil is so critical to his task force. He's a type of electromagnetic warfare specialist called an emmer serving in an interstellar war. However, Emil is slowly going insane- a path already taken by two other emmers in the task force. He's seeing scenes from all over the ship, noticing things that can't be real, and starting to doubt his own humanity. What's worse, the war isn't going well, and the crew of the flagship Excalibur are...

When the ex-slave named Nergal joins a party of heroes, he isn't looking for adventure, he's just looking for an easy meal But soon enough the impressionable half-sragn begins to feel a kinship with these men and women who are on an important mission to an abandoned castle. Dark forces are marshalling against them, and Nergal is seen as an asset in the quest to stop the evil that threatens their kingdom. Unfortunately for Nergal, he's done things that wouldn't go over well with his heroic friends. As he grows into a mighty force for good himself, Nergal must hide his past. He becomes drawn...

Ex-soldier-turned-wanderer Keran travels into the wasteland, fleeing an unknown horror that has killed his friends. He finds safety in an isolated tower by an oasis, but the tower slowly becomes his prison, for the creature awaits him beyond its walls. During his enforced isolation, Keran slowly unravels the mysteries of his sanctuary and the monster that hunts him. Eventually all hope of resuming his previous life is lost and he becomes obsessed with seeing the creature destroyed.