Without more details about 'the black box story', it's difficult to determine the main characters. But in a mystery - themed story, there could be a detective - like character who is determined to solve the mystery of the black box. There could also be a witness or someone who has some knowledge about the black box's origin and they play an important role in the story.
The main characters in the 'black box short story' really depend on the nature of the story. If it's a story about a lost civilization and the black box is a relic from that time, the main characters could be archaeologists or historians. They would be the ones trying to unlock the secrets of the black box. There might also be local guides or informants who play important roles in the story. If it's a more fantastical story, it could be a wizard or a magical being who is either protecting or seeking the black box, and there would be other characters in their world who interact with them regarding the black box.
There could be a group of characters. Maybe a scientist or an investigator who is intrigued by the black box. And there might be others around them, like friends or colleagues, who either help or hinder their exploration of the box. For example, a friend might encourage the main character to open the box while a colleague might warn against it due to potential dangers.
Since I don't have the full text of 'the black box short story', it's hard to say precisely. However, it's common to have a central character who is affected by the presence of the black box. There could be a secondary character who is somehow related to the origin of the box, like a previous owner or a creator. And there might be a character who serves as a foil to the main character, highlighting different attitudes towards the black box.
I'm not sure as I haven't read the specific 'the little black box short story', but often in such stories, there could be a curious protagonist who is drawn to the box.
Since I don't know the exact 'the boy in a box story', the main character is likely the boy. But there could be others like the person who put him in the box or someone who discovers him in the box.
Since we don't know the exact 'boy in a box story', it's difficult to say. But surely the boy in the box is one of the main characters. There might also be the person who discovers the boy in the box, like a passer - by or a rescuer.
As I don't know the particular 'the box short story', it's hard to say. It could be a young protagonist who discovers the box. Maybe an old man who has been guarding the box for years.
Since I don't know the exact 'boy in box story', it's hard to say. But surely the boy in the box is a main character. There might also be someone who discovers the boy, like a passer - by or a person looking for something in the area where the box is.
I don't have enough information about 'the big box story' to determine the main characters. It could be a group of kids if it's a children's story, or it could be some sort of investigators if it's a mystery story related to the box.
Since I don't know the specific 'box love story', I can't say for sure who the main characters are. They could be two young lovers, like a boy and a girl.