Assassin's Creed: Brotherhood

Using the Animus 2.0, Desmond Miles attempted to relive one of the later memories of his ancestor, Ezio Auditore, hoping that it would reveal the location of his Apple of Eden, which could allow them to prevent the foretold disaster. However, instead of entering the memory set in 1506, he was forced into a different one, occurring during a battle in Viana. From there, as Ezio looked upon the besieged Viana Castle, he recalled the similar events of the Siege of Monteriggioni, subsequently forcing Desmond back further, into a memory from 1499.