Rodent update

So I thought I was clever and put out a metal trap with a cookie inside but he ate it, uncaught and no crumbs left behind! I also stuffed a blanket under the crack of the door but he pushed through it, enough so that I could see it was large, gray and fast. Upon seeing me he retreated fortunately and called for me to reinforce my barricade efforts. After that night, my first sighting and the failure with the trap I put out a few more lures and did an obsessive cleaning of my house, searching high and low for any creature or creature gates. That night I did not have any bites. I think he might have left? How, I do not know.
Maybe he's still here... lurking around, playing it quiet until I give up my paranoia. Clever creatures.