The man who never returned could have had memory loss and forgotten his way home. It's also possible he was kidnapped or got trapped in a situation he couldn't escape from.
Maybe he got lost or met with some unexpected danger. Could be he decided to start a new life elsewhere and didn't want to come back.
There are several possibilities. He might have faced a serious accident and couldn't make his way back. Or perhaps he discovered something that made him intentionally stay away. Maybe he was caught up in a crime and had to go into hiding.
One possibility is that he was under a curse or a magical spell that made it impossible for him to return. Another reason might be that he was framed for a crime he didn't commit and had to run away to prove his innocence.
It could be that there was a lack of communication or misunderstandings. Or maybe external factors like family pressure or geographical distance prevented it from starting.
It could be about a mysterious man who disappears without a trace and the impact it has on those around him.
It could be that he decided to disappear on purpose or was abducted. Who knows! The possibilities are endless.
Another possibility is a curse from the supernatural world. Maybe he entered a haunted place or broke an ancient taboo, and as a result, a curse was placed on him to transform into a dog as a form of penance or to teach him a lesson about respecting the unknown.
It could be a case of mistaken identity or a parallel universe situation. Or perhaps it's all part of a complex dream or hallucination.
It might be that the man made a deal with a witch and broke the terms, causing the transformation. Or it could be a symbol of his inner transformation and represented metaphorically as a physical change into a dog. There could also be a virus or a strange potion involved.
It could be a mystery or a crime plot. Maybe he was kidnapped or went into hiding to escape something.
Maybe he got lost in some remote area. Or he could have been kidnapped and held captive by bad guys.
Maybe he was trying to escape some disease or a dangerous situation. Or, it could be part of a scientific experiment.