"Few tales tell of heroes and dragons, knights and giants, magic, miracles, love, a banshee, and the undead . . ." So begins Aelfric the Entertainer, this tale's invasive, witty, and often philosophical narrator. Set on the moors of Scotland in the waning months of Arthur's rule, "Three Days and Two Knights" tells how Sir Alanbart, an impoverished and spineless knight; Heather, an indomitable and irresistible serving maid; Scot, a pagan swordsman...