okie i was in lilycove in the big mall and i went to the top and there was a guy i never saw before i talked to him and he was selling base stuff so i bought stuff and went to my base but when i went to go get more stuff he wasen't there:S will he come back and how will i know when he is back?

The Televisions will occasionally display a countdown (by days) when he will come back. Yes, the man will return.

sweet ty u so much^^

It's called the Lilycove Department Store Clearance Sale.