Crystal of the Chronarchs

Wondrous Item (crystal orb), legendary (requires attunement)

This glassy orb is 6 inches wide and smooth. Though translucent, the center is swirling with silvery sand.

Scry

You cast the Scrying spell. If you repeatedly target someone with this they feel watched.

Scry Through Time

You can view anytime in history, as it occurred in the location you currently are.