They pondered the question for a moment before answering. "Around the.. fourteen hundreds in the Material world I believe. After a few centuries and no sign of you, we.. feared you were lost. So we started to look into the cycle to have data of the variances. Since you are here now, we want to ensure we could see if the nine hundred years was due to circumstance or if we should prepare for it when the time comes." They walked towards the platform and waved their hand. It came to life with a soft whining pitch noise and several rainbow lights illuminating the device. "This is the Soul Beacon. The name is a bit misleading as it doesn’t pull souls, but makes snapshots of them and allows us to track them through the various machines you see my Archfey tending to." 