Simplify the following text for a Grade 7 native English-speaking person.
Original: Asked by publisher John Murray to review Emma , famed historical novelist Walter Scott wrote the longest and most thoughtful of these reviews , which was published anonymously in the March 1816 issue of the Quarterly Review .
Simplified: He was asked by publisher John Murray to review Emma . Emma had come out in print ( without saying who the writer was ) in the March 1816 issue of the Quarterly Review .