Board Thread:Speculation House/@comment-1292715-20181223044830/@comment-35941743-20190427051640

SpiritedDreaming wrote: Theory: Maybe Cinder isn't the first artificial Maiden Salem made, and Summer was killed by the previous False Maiden+friends (mortally wounded), but not before Summer got a blast of Silver Eyes off on her.

It explains how Salem knows for certain that Silver Eyes affect Cinder negatively beyond a simple guess of "Silver Eyes + Grimm = Bad". It may have something to do with her wanting to use Ruby as a failsafe in case of backstabbing from people like Cinder, or she may want to see what happens to a Silver Eyes Warrior if they get implanted with a Grimm Bug and then use their eyes.

The whole Salem implanting Ruby a grimm bug might be pretty interesting. Besides stealing maiden powers, who knows how Salem can use these buggers. Maybe to control their hosts or if they cannot be controlled, VERY slowly kill them, maybe poison.