This Cover wasn't used for a chapter of the Purple Glow in later chapters so I just made it into a foreshadowing drawing.

The stuff in his mouth is not Blood It's called quintessence. It's a Pink Liquid Stop reporting this drawing for Blood.

https://static.wikia.nocookie.net/voltron/images/9/90/167._Purple_quintessence_distilled_into_container.png/revision/latest?cb=20161003034845