That was extended and he spent three months with the Bedfordshire club making seventeen appearances including all their five FA Cup ties ending in the 1-0 home defeat to Tranmere Rovers on Saturday when he was beaten by another former Claret in Micky Mellon.
Now he is off to Barnsley and the luxury of an eighteen month deal, it seems he has learned his lesson the hard way after his decision not to commit to the Clarets last season.
Marlon said of the move, "I received a phone call a couple of weeks ago about coming to Barnsley. I have been looking for a contract that could offer me some stability so I am happy to get that here."
Luton are not so happy and their boss Mike Newell said: "We are disappointed, particularly in light of how well he has done since he has been with us.
"I am disappointed in The Football League because we might have been able to sign him until the end of the season had they given permission to do so earlier than they did."
Marlon goes straight into the Barnsley side that will play Blackpool and Steve Davis at Oakwell tomorrow night.