Caspian, my main goat, is usually a single child with a single mother. In the main 'verse where he and Heartsong first met, this is indeed the case, and relatively they live a calm, normal life with Heartsong popping in to spice it up. However, a strange but notable difference in some worlds include the existence of a sister. One Cordelia Ibex...and boy is she something else.

What's relatively understood is that she's born with a purpose, a reason for existing in the universes she does. Heartsong thinks she might be some weird sort of 'run-off' from Caspian after she seeded him across countless realities, taking the place sometimes of the big gal that might end up being in Caspian's life. However it's never a direct effect or result, as she has a very strong penchant of being a thief or seductress, usually blending both to get what she wants. And what she wants is to have riches, luxury, and far smaller problems inhabiting the world with her. If said theft might sometimes include 'the heart and power of the almighty wicked god' currently terrorizing the world her darling brother lives on...

Art By:  AttacRacc