Back when Anna and her entourage had left the city, Adam had come up with an ingenious method to manifest a summoning gate over large distances.
He would carve the spell model of the summoning spell into a strand of his hair. This itself was an incredibly difficult endevour. It required not only a deep understanding of runic magic, but also exceptional precision and the focus to etch runes onto something so delicate and minute.
Fortunately, Adam qualified in both aspects. He had deepened his understanding of runic magic by studying tomes given by the Brotherhood and also memories rich with the past expert's experience in this type of magic.
As for the latter, the Sphere of Resonance had several applications, limited only by his creativity. One such application was magnifying his vision to observe the most minute of details. Of course, such a thing required Adam to expend spiritual energy.
