 "On the morning of Monday 9th March 2009, there will be a formal unveiling of the restored opus sectile in Long Tower.These are the three grand panels behind the high altar – the Ascension of Christ flanked by St Peter and St Paul.Opus sectile (pronounced “seck-teel-ay”) is the Latin name for a series of opalescent painted glass “tiles”, first used by the ancient Romans on luxury floors.