A piece I've posted elseware, that will have two companions in time. This is an Eidolon, a mythical creature that my upcoming comic is based around. This one is based on a mongoose.

Eidolon pt 1.

Eidolon are spirit walkers – they ferry souls after the physical body has perished.
Eidolon are themselves simply souls touched by a god, with some of the god’s power transferring to that soul. Eidolon are naturally born, but cannot naturally die.
On the physical plane, eidolon individuals appear normal - nothing distinguishes them outwardly from regular animals. It is only when they cross the life/death divide that their true selves are revealed.
The typical appearance of an eidolon is dark, with points of light. The light is the inner soul shining through the body and is revealed at points where the eidolon has physically ‘died’.
Each eidolon has their own unique ‘horn’ which carries souls with them. These souls are then delivered to the gods for cleansing and then recycling back into the living population. It can change shape over the course of the eidolon’s ‘lifetime’

More info to come in part 2~