Last time we talked about making it worthy. Actually, all I said was to make it worthy and why. Your ending needs to leave the reader not with a bang, a whimper, an oomph or an oops, but an exhalation. How do you do that? Remember, I'm still working on my ending. I'm going to direct you to a couple of guys who have experience with endings and endings that leave the audience feeling fulfilled in a medium famous for making you want your money back: movies.
Terry Rossio is one part of a hit making team that brought you Pirates of the Caribbean and Treasure Planet (and a dozen more) and has a column that is as entertaining as it is informative. Though only one (okay, more than one) of the steps listed deal with endings and what makes a story ensnare an audience, the whole column is worth a read. So's the backmatter.