Brazen Head is not the only city pub with phantom customers.

BBC: Haunted Dublin

As a symbolic gesture to the public, the venue is marking the changeover with a free concert on Thursday that will include acts from Broadway shows ("Chicago, " "Avenue Q, " "Phantom"), plus the New York City Gay Men's Chorus, the Town Hall Broadway's Rising Stars Chorus, and others.

WSJ: Brighter Lights for Town Hall

The companies behind "Uncle Roy All Round" say the game changes the way the players interact with the city, which sounds enlightening and all that but we have a sinking suspicion that this hunt for the phantom Roy will turh out a little more like "Waiting for Godot".

ENGADGET: Hunting for Uncle Roy