One possible moral could be about the power of friendship. The witch and the crow might show that different beings can support each other in various situations, no matter how different they are.
The main characters are surely the bruja (witch) and the crow. The bruja might be depicted as having certain powers or characteristics typical of witches in folklore, such as being able to cast spells or having a connection with the supernatural. The crow, on the other hand, could play different roles. It could be a messenger for the bruja, or it could be a creature that the bruja is trying to either help or control. There could also be a relationship where the crow is the only friend of the bruja in a world that might be otherwise hostile to her.
Since I'm not familiar with this 'la bruja and the crow bed time story', it's difficult to provide the full story. However, generally, a bedtime story often has elements like interesting characters, a setting, and a plot. In this case, it seems to involve a witch (la bruja) and a crow. It might be about their adventures or some kind of relationship. But without more information, that's just speculation.
Since I don't know the exact story, it could potentially be about a figure who met a watery end and was considered beautiful in a way that defies normal expectations. It could be a story about love and loss, where the person who drowned was remembered in a special way that made them seem the most beautiful. It might also be a story with a moral or lesson, perhaps about the transience of life and the power of memory.
The main character is probably Father Amaro. There could also be characters such as the people in the community he serves. Maybe there are other religious figures or local townspeople who interact with him and play important roles in the development of the plot related to the crime in the novel.