Mason has signed with Accies until the end of the year as cover, with the injury to Alex Neill perhaps forcing manager Billy Reid to sign another player. He's their 12th signing of the summer!
Mason, who played for Manchester City and Dunfermline before signing for Saints two years ago, had a good first season at the club but a mixed second term. It's a surprise he spent most of the summer without a club, although was linked with a move to high flying Notts County.