Answer
1)The antecedent in this sentence is enjoyed.
2) Pronoun is "i"
Explanation:
Antecedent is a thing that existed before or logically precedes another.
These sentences are a fragment
The mood (or tone) of the prologue is considered as sombre, dark, macabre... since from the start we're being told that this story is going to be a story of love, death and loss.