Saber ran into his master just in time. Siegfried had slowed as he sensed his Servant approaching. "It's not safe here, my lord. We should retreat and strike back another day, ideally outside of this field."
"What about the battle going on behind us? That should be one of my allies. As much as I would love to let them be slaughtered by the owner of the Noble Phantasms being invoked, I am honor-bound to assist. As my Servant, so are you." Siegfried reluctantly turned and moved toward the battle as quickly as possible, before realizing something. "Saber, you can move much faster than I." He stopped for a moment, putting one hand over his face. Saber would have said he was embarrassed, but the magus was surely too stoic to be. "Carrying me will bring us to the battle more quickly."
"As you wish, Master." The large warrior scooped up Siegfried in his arms and slung him over his back, preferring to carry him like someone wounded rather than like a child, sparing his pride somewhat. They quickly reached the battlefield between Archer and Lancer, and were greeted by the sight of the raging torrent and a blast of steam. After Saber set him down, Siegfried drew his blade and made a few quick slashing motions, drawing a rune that pulsed once and dissipated. An expanding current of air cleared the steam away, allowing a clear view of Archer, who would have surely detected their presence by now.