Persephone is none other than the Probationer; his Oath is Cora's grain of pomegranate. Even knowing the consequences of all this, it would not prevent Cora from tasting the fruit which would permanently tie her to the dark, distant kingdom so far away from home and her mother.

Superior’s task

Disguised as a beggar, the great Odysseus was patiently enduring suitors' abuse. He uttered words which the Probationer will sense perfectly: “Still, my heart, for you have suffered heavier things”. Secretly knowing that, when the time comes, he will kill every one of them.