In a darkened house not far from the place where Camelot may once have stood, a madman schemes, plotting toward the day when he will wrest the cup that men call the Holy Grail from the boy who is its guardian.Arthur Blessing is no ordinary ten-year-old. The Grail is his by chance, this time, but the power to keep it--a power as ancient as time itself--is his by right.Now he must stay alive--battling foul sorcery and indefatigable assassins--long enough to use that power.