Demon's Souls: The Choice

Lately I've been playing both Demon's Souls and Dark Souls. There was a lot of awesome things and yet also heavy despair within both games, while I was playing Demon's Souls I've slayed every boss but the last one in the Valley of Defilement. Much like a few bosses in Dark Souls, there was one boss I felt the need, that didn't deserve to be killed, that boss was Maiden Astraea.