Photo by William Warby , via Flickr In the animal kingdom, chameleons are noteworthy for being able to change color in response to their environment. This makes the word chameleon an apt metaphor to denote that specialized class of Fantasy characters whose moral priorities and personal loyalties are (or appear to be) in a state of flux throughout the story. If you’re a Fantasy writer, having a chameleon in your cast list is like having a wild card up your sleeve in a poker game. I.e., it can really liven things up when the chips are down. To begin with, the chameleon often has a touch of “the alien” about him. 1 He may be racially distinctive (one lone dwarf in a company of elves); he may come from a suspect place on the map (a Southron merchant visiting Minas Tirith), or he might belong (or might once have belonged) to a socially dubious caste or profession (a former imperial inquisitor who claims to have renounced his past). Whatever the nature of his “difference”, h...