Link, Pipit, and Groose had departed as early as they could for the Ice Mountains. Link had asked Ilysa to contact Irsia to request that she meet them at a rendezvous point, but he doubted Irsia would actually show up. However, Link was pleasantly surprised to see that Irsia was waiting for them as they landed their Loftwings. Link sent the Loftwings away, telling them to find shelter and to rest. Irsia briefed them on her most recent scouting of the region, and informed them that over the past few days, monsters and demons have begun to inhabit the mountains, and that the Demon Usurper could be felt in a large radius, in which the Sheikah had pinpointed to an epicentre where it was most likely emanating from.
"I'm sure the monsters won't make our ascent to the peak pleasant, but the peak is definitely where the aura is coming from. He is likely to create barriers, as he did during the Battle of the Sealed Grounds, but we believe that we may have something to overcome that obstacle," Irsia put out her hand in a fist, with the back of her hand facing upwards. She turned her hand over and opened it, and there was a brief flash of light. When Link looked again, he saw that Irsia was levitating an arrow over her hand, but this was no ordinary arrow: this arrow was golden and seemed to emanate a faint golden glow. "Our people have spent many years trying to master these arrows; we call them Light Arrows. They possess enough evil-brandishing magic to puncture any spell, barrier or attack that the Demon Usurper throws at us. We have not yet fully mastered them however, so I was only able to bring three of them." Irsia seemed to think that three would not be enough, but Link smiled to himself.
Three was his lucky number.