Maybe being scared of things he never knew before ?
Like the fish, Waverly wanted to get away and escape from her mother in vain.
Hyperbole
If don't know what it means its best to start of with what you do know
Process if elimination.
It's not a simile because it has no like or as.
Its not Personification cause its not giving the object human features.
And its not metaphor cause its not literally Applicable. I'm assuming.
So that just leaves you with hyperbole.
Answer:
topic sentences state the main idea.
