It was pure luck that Kayneth El-Melloi Archibald captured Caster’s figure in his sight in Fuyuki.

Although he was dumbfounded upon discovering that figure in a inky black cloak, obviously from the wrong era, strolling casually along the suburban streets at dusk, Kayneth began his chase when he saw Caster stopping a small truck that passed by, gave hypnotic suggestions at the driver, and then sat in it with the children as if it was a kindergarten trip.

- Fate/Zero: Act 6, Part 4