are magical creatures, usually very much like human beings. But they can do many things that humans cannot do. Most can make themselves invisible. Many can travel in an instant anywhere they want to go, even very great distances. Some can change their shapes; they might look like cats, or birds, or dogs, or any other animal. Some of them live for many hundreds of years; others (Like with Tinker Bell From Peter Pan) live forever. Many like to play tricks on human beings; others like to help them. come in all sizes and shapes as well. They ....