Archmage's Staff

Recently, a famous magician approached me... It's not in my rules to disclose the names of clients, so we'll just call him M. So, M. confessed to me that his powers are not the same as before, and soon envious people may displace him. The only way out is to take possession of the archmage's staff, which, according to rumors, was once kept on the ninth floor of the Light Tower. Can you get a staff? I will not stand for the price!