In a way that cannot be controlled
The tone - sentence b made it seem more secretive with its word choice (stranger, crept) the meaning is the same - in both a person is moving towards the door but the tone is more mysterious in the second sentence
Explanation:
Water <em>pollution</em> in the lake has made the fish die.
At the end of the book, Tom and Becky are trapped in the cave. When they are rescued from the cave and find the treasue, and return home, that is the resolution of the story because the biggest confict is resolved.