I would help but i dont have the time right now, is it too late? or?
Answer:
Simile
Explanation:
The author is describing a boy's mind moving like a long-legged fly. A simile describes something "like" or "as" something else.
I would ask -
Something strange is going to happen involving a dog.
What is going to happen to the dog at night?
Will there be a mystery to solve about the dog?
According to the title, this is it.