Final answer:
The excerpts provided do not contain information about someone named Aven or how they woke up covered in chocolate. Instead, these passages describe different characters and their unique awakenings, with no mention of chocolate-related incidents.
Step-by-step explanation:
The stories provided do not directly explain how Aven woke up covered in chocolate one morning. Instead, they each describe different characters experiencing either a physical or metaphorical awakening. From Goodman Brown in Nathaniel Hawthorne's short story dealing with his suspicions and doubts after a dream-like witch meeting, to Percy informing a character that servants took care of them while they fell asleep, these fragments of literature and narrative offer a glimpse into moments of realization, whether they arise from dreams, discoveries, or the aftermath of nocturnal activities.
The common theme across these excerpts is characters coming to terms with their surroundings or circumstances after sleep, be it actual or metaphorical.The notion of Aven being covered in chocolate is not present in these examples, suggesting that if it occurred, it was due to some off-page events not described in the given texts. Consequently, it remains unclear how Aven woke up covered in chocolate.
However, one can suppose that if a character did awaken in such a state, it could be the result of an incident involving chocolate desserts or a dream turning into a messy reality.