A HORSEMAN WILL RISE! The battle for APOCALYPSE's tomb reaches its explosive conclusion! JUBILEE, WOLVERINE, RICTOR and SHATTERSTAR have been completely overwhelmed by the dangers of the tomb... and one of their number will not emerge unscathed! Trapped in an impossible situation, which X-Man will become the next Horseman of Apocalypse - and will they become mutantkind's greatest savior or its doom?!