(Moorhead, MN) -- In what's being called the largest embezzlement case in Clay County history, a former church bookkeeper is charged with stealing over 600 thousand dollars from the E-L-C-A's northwestern Minnesota synod. County Attorney Brian Melton says Robert Larson of Wolverton forged checks made out to himself and his wife, and used most of the money for improvements to his home. Melton says it's a large-scale, long-term embezzlement case, which unfortunately wasn't discovered for a long period of time. Prosecutors say Larson stole the money between 2004 and 2011. If convicted, he faces up to a hundred years in prison an a half-million-dollar fine. His first court appearance is March 19th.