Kaldrin and Quiliun have been in this world a few weeks. They haven't drawn any attention to themselves.
Kaldrin has, carefully, summoned a fairy and an angel.
He's sure that he doesn't have a soul to steal.
He finds a bit of wilderness with a clear bit of ground, a fifteen-minute walk from a rarely used hiking trail.
He draws the standard angel summoning circle, swapping in demon for angel everywhere it appears.