Imogen has left the big city for the hometown she grew up in. She was now back to a place where people knew her. This is because when growing up Imogen had interaction with other people who can observe her and form opinions about her. What it means to know someone is to spend time with them and get to know their idiosyncrasies.
The cat walked into the barn while the mouse hid in the straw.
"As I walked through the desert" This phrase could not stand alone. The sun glared down at me can.