A scrying mirror was presumably a type of mirror which allowed the user to look into the future.[1] Janus Galloglass, a mirror-maker in Diagon Alley, sold scrying glasses, along with other catoptromancy tools.[1]


Notes and references

  1. 1.0 1.1 Illustration of Diagon Alley by Jim Kay from the Deluxe Illustrated Slipcase Edition of Harry Potter and the Philosopher's Stone (see here).