Snape arrived at the airport, and he realized he'd forgotten to tell the girl where to meet him.
"Bloody hell, so many muggles." He muttered to himself. He decided to go ask the guard when the flight from Chicago came in.
"Four hours ago, over there." Said the guard and pointed in the direction of the port. Lilly looked up in time to see Snape walking in her direction. Calmly she said,
"Hello, I'm Lilly."
"I know who you are." He said to her coldly. Lilly thought he was being extremely rude to her and screamed,
"Screw you dude, my parents just died, your four hours late, and I'm stuck in this hell you call London!" stunned by her anger and choice of words Snape grabbed her things and started to leave. Lilly quickly got up and followed him to a cab.
"To the leaky cauldron." Snape told the driver. Once at the leaky cauldron, they went straight to the back, ignoring the stares of quite a few strangely looking people. Snape pulled out a stick and tapped a few bricks, and the next thing she knew, she was in Diagon alley.