GEORGE EDWARD STANLEY

According to Wikipedia: "George Edward Stanley (July 15, 1942 – February 7, 2011) was a teacher at Cameron University and author of short stories for middle grade kids under the pseudonym M. T. Coffin. In 1979 he published his first book Mini-Mysteries began to write children's books, career that led him to write 102 novels (including also one republished in Italian)."