In my own town I have just found that a Dennis Trident / Alexander ALX 400 is now a resident of Mold.
It has taken up residence on the Mold Industrial Estate at the location of the 'De-Part-Mental' Store which is essentially a large scale second-hand store that has a cafe. The bus is being used as extra seating for this catering facility.
Y66 BUS was originally Y441NHK when new in August 2001. It has had a number of operators mainly in London including Connex Bus and Stagecoach when it carried the fleet number 17441. In July 2015 it became a 'Film Diner Unit' with Direct Film Vehicles, Aigburth.