Мне непонятно почему метки сохранились после выхода из петли. Это серьезное упущение. Ладно мгновенная духовная связь, ее можно было бы объяснить по другому например тем что часть души зака до сих пор в зориан не растворилась . Хотя ритуал ищет только метки и видимо автор не нашёл другого способа обосновать мгновенную духовную связь

Quickly rummaging through his old school supplies for alchemical reagents and deconstructing a bunch of old items scattered around his room for necessary materials, Zorian constructed a simple ritual circle on the floor of his room. He then spent almost a minute performing a special long-range ritual spell… one that tapped into his marker. The same marker that he had shared with Zach.

There was no guarantee that Zach still had the marker on his soul, of course, even if he had successfully left the time loop. Unlike Zorian, Zach was supposed to leave the time loop the normal way for a Controller. That is to say, the Guardian of the Threshold would perform the transfer. For all Zorian knew, this process may have involved erasing the marker, since it was no longer necessary.