Final answer:
The provided excerpts do not include any information about Mrs. Shears speaking to Christopher on a park bench; the excerpts seem to be from various literary works, and none mention the characters Mrs. Shears or Christopher.
Step-by-step explanation:
The question you've asked is from a novel, and it appears that you're referencing a scene where a character named Mrs. Shears interacts with another character called Christopher.
However, the provided excerpts do not include any direct conversation between Mrs. Shears and Christopher, nor do they feature a park bench scene. The texts you’ve provided instead seem to be from different literary works and don't include information about Mrs. Shears telling Christopher anything.
To accurately answer your question, it would be essential to have the correct context or specific details from the novel you are referring to, possibly The Curious Incident of the Dog in the Night-Time by Mark Haddon.
In the book 'The Curious Incident of the Dog in the Night-Time' by Mark Haddon, Mrs. Shears tells Christopher on the park bench that his father killed Wellington, the neighbor's dog. This revelation shocks Christopher and sets him on a journey to uncover the truth about what happened.