Well, 'The Egg' could be about a person's transformation or a lesson learned. It might focus on a character's journey or an exploration of some profound idea. Without knowing more specifics, it's hard to be precise.
I'm not sure as the information is not given. But usually in a short story, the main characters are the ones who drive the plot forward and are most involved with the central element, which in this case is the egg.
The main idea often revolves around the significance of the egg in the story. It could be a symbol for new life, potential, or some kind of transformation.
Well, the 'the egg short story' may center on the egg as a focal point that drives the plot. It could be that the egg has some unique properties or is in a unique situation. Perhaps it's the last egg of a rare species, and the story is about the efforts to protect it. Or it could be a magical egg that brings unexpected events and challenges to the characters in the story.
Since I don't have detailed knowledge of 'the egg short story', the main characters could be various. It could be a group of adventurers who stumble upon a mysterious egg during their travels. One of them might be the leader, another the curious one always asking questions about the egg, and there could be a cautious member who is worried about the consequences of dealing with the egg.
In the 'the dragon egg short story', the plot could be centered around the significance of the dragon egg. It might be that the egg is a symbol of power or hope in a particular land. There could be a prophecy associated with it. A young hero or heroine might be tasked with safeguarding the egg. Along the way, they could encounter different allies and foes. As the egg nears hatching, the tension in the story builds, and once the dragon emerges, it either becomes a force for good, helping to restore balance in the land, or it causes a series of events that lead to a whole new adventure.
The egg could be a magic egg. A poor girl finds it. When she touches it, it glows. Out of the egg comes a key. The key unlocks a hidden door in an old castle, and inside she finds treasures that change her life.
As I haven't read the 'the sacrificial egg short story', it's difficult to say. There could be a young child who discovers the significance of the sacrificial egg, or an elder in a village who is in charge of the ritual involving the egg. There might also be other characters who oppose the sacrifice of the egg, creating a conflict in the story.