....I'm pretty sure I don't need to write anything here. The Image should speak for itself.
Stardust Syrup is the sparkly, gooey liquid that Dusky and the other gods have in their bodies. It has a similar texture to jam and it tastes really delicious. However, it contains so much powerful magic that if a mortal ends up consuming some, their body starts falling apart after 3-10 seconds. It's highly toxic for mortals to drink.
