X-Men Vol. 1 (1963-1981) / The Uncanny X-Men Vol. 1 (1981-2011) #544

Plot

After the hammer-blow of FEAR ITSELF and the violence of SCHISM, it can't go on. It's the end of the Uncanny X-Men. And who better to provide a stirring eulogy than...MISTER SINISTER? Join us for the end of the industry-shaping series with the return of the 19th century's finest morally dubious scientist.