C21 Specter Doctor

Hearing grandpa's words, I immediately reacted. Could this old man be a stalker maniac? But my grandpa and I are so poor, why is he following us?

While I was daydreaming, the old man began to talk again.

"You don't need to worry about how I know. Just do as I say." The old man stretched out his hand to stroke his beard as he spoke in a calm and composed manner