They also seem to have charged the pair with a sense of morality, what with rewarding the good and rightfully punishing the wicked. It's a shade dualistic, if you asked me, but we all know my sense of morality is a spectrum of greys.

I'm wondering if one of their Pthumerian parents had a herbivorous aspect, hence the deer and goat motifs. It's not without precedent: I'm the physician to a pair of half-Pthumerian twins, one of whom has goat-like attributes. Perhaps little Wil is their nephew or half-brother.