IT IS said that if you know the Creedons you know half of Cork. Well, that chunk of the Cork mafia was out in force at the Temple Bar Gallery on Wednesday, for the launch of Conal Creedon's new book, Passion Play. Six of the 12 Creedon siblings were there, including John, to hear Minister for Education and Science Micheal Martin say there was one wonderful description in the book of someone getting sick "as only a Corkman would understand".