Answer:
Hi, I can tell you both answers.
Explanation:
This explanation is going to come from a movie standpoint. If you need the book's standpoint it may be different since I never read the book but watched the HP movies. So were first introduced to Mad-Eye Moody in the fourth movie of Harry Potter, which is Harry Potter Goblet of Fire. Mad-Eye Moody was said to help put many people in Azkaban and was also a member of the Order of the Phoenix. He supposedly lost one of his eyes in the clash with Voldemort and his death eaters. He replaces this eye with a glass/magical eye that allows him to see through anything. It's also assumed that he lost his leg in the first wizarding war also. In the fourth movie, one of the death eaters used poly juice to assume the form of Mad-Eye Moody. Therefore in the fourth movie of HP, it wasn't really mad eye moody but a death eater disguised as him. We also meet mad eye moody in the movie after the goblet of fire.
There are 7 books in the Harry Potter series.
