Ridiculous and fun. I wish all of Cook's novels were this whacked out and macabre. It's no "Coma", but it has the same outlandish thrills as "Mindbend" and "Shock", which is fine by me. I don't expect great literature from Dr. Cook; hell, I don't even expect great storytelling. But "Brain" has just the right amount of B-movie silliness to keep the pages turning. And, since the book was released in the early 80s, a lot of it is hilariously outdated (which, obviously, adds to the fun).