The Holy Grail War continues to escalate as a series of shocking revelations explain the history connecting Saber to Excalibur. In a lethal game of chess, pawns and knights are expended one by one, slowly whittling down the number of surviving players. And as a massive wave of comas begins to take down the cities, it becomes clear that the only possible path to victory is an assault on the Master and Servants of the Ryudoji Shrine! But when Sakura is taken with the intention of sacrificing her in order to summon the Grail, Shiro is forced to choose between two equally lethal options: Let Saber"s mana continue at its existing level, almost certainly insuring her death as the battle wages on; or resupply her mana from his own magical circuit, reducing his power below that of the other Magus, and leaving both of them open to magical attack. The price of winning could mean potentially losing everything in the climactic conclusion of FATE/STAY NIGHT!