It's All Hallow's Eve, and what better group to spend it with than Angel and his associates? In this Halloween-themed annual featuring four special stories, everyone wears a mask of one kind or another... including Angel Puppet, out on a "Mystery Date," courtesy of Jeff Mariotte and Stephen Mooney, Illyria in "Unacceptable Losses," by Scott Tipton and David Messina, Cordelia in "Foreshadowing" by