Petros has the local features and weather-ready presence of a young man among the Swedes of the rising northern kingdom, though there is something subtly too large in the way he occupies a doorway. His skin is pale and wind-roughened, his hair lies in uneven, practical waves, and his heavy wool garments hang from a broad, still-developing frame. He steps heel-first with a weight that makes packed snow tremble. People notice within minutes that he keeps a little more distance than necessary, as if measuring the room for everyone in it. Unexpectedly, he carries a tiny, carefully mended cloth rabbit tucked into his document case, its ears nearly worn through.

Measured and wry, Petros is patient with people who are frightened but impatient with arguments built on convenient lies. He trusts evidence, yet understands that people often choose by loyalty, shame, or hope instead. Around friends he can be warmly amused; in danger he becomes methodical. When someone needs a firm answer, however, he may keep searching for a narrow path between bad choices long after the group needs him to pick one.

Before the crossing, Petros Kallias worked as a lawyer and built his life around careful questions, imperfect evidence, and the fact that even a sound argument could fail to move a frightened person. He remembers his former family and intimate relationships, but has offered no clear account of them. The others cannot tell whether he left behind a spouse, a partner, children, or all three. He woke in a changed young body among Swedes in a northern kingdom that seemed to be climbing toward power. At first he was too stunned, and not sober enough, to grasp the full extent of the transformation. Still, he helped the newly arrived group establish a first watch order, because a practical task was easier to face than the impossible one. In the days since, his cold resistance, shuddering footsteps, and carrying voice have made him suspect that old stories about jotun fae may be more than stories. He is one of the Seven at the Track, a circle of seven longtime tabletop roleplaying friends from the United States, displaced together without charter, uniform, or legal standing. At the hot springs, he helped them reach a shared understanding of privacy without turning it into a formal law. He is amused by Hild's jokes, but worries privately that Hild's ease around danger is a way of denying fear. Petros currently tries to keep the group alive through agreements, observation, and restraint, while avoiding the question of who, if anyone, is waiting for him in the life he remembers.