Mirrorers are anomalous dolls that have come to life after seeing a mirror for the first time. They are lovable, if mischievous creatures that take joy of jumping into mirrors and becoming intangible. The longer they stick around an owner, the more they mimic their actions, behaviors, and voice. Even after the owner has died the mirrorer will continue its mimicking for ages, often becoming a metaphorical "ghost" of its owner.