Final answer:
The Vermillious spell creates a jet of red sparks or flames from the tip of the wand.
Step-by-step explanation:
The Vermillious spell is a spell from the Harry Potter series. When cast, it creates a jet of red sparks or flames that shoot out from the tip of the caster's wand. These sparks or flames can be used for various purposes, such as signaling or creating a distraction. The spell is often used in duels or in magical displays.