Marcus has enjoyed spells with Sheffield Wednesday, Nottingham Forest and Barnsley before spending the last three seasons with Coventry City.
Assistantant manager Steve Hinks said, "It's great news that we have been able to get Marcus on board with us after he left Coventry at the end of last season. He will bring a touch of class and experience to our side that will help others around him".
It's been a busy 48 hours for Steve with two further signings...... Luis Morrison-Derbyshire joins the club on loan from Alfreton and Myles Mason joins on a work experience loan from Preston North End.
Luis is a centre back who also made news by appearing on the ITV show Love Island.
Myles is a young striker who is a second year scholar with Preston North End.
Good luck to all three from everyone at Coles Lane.
Updated 11:23 - 9 Sep 2017 by Neil Murrall