" Friday looked up. She bit her lip. She didn’t want to say anything. She didn’t think she could without crying. But she had to say something. “Let’s make a pledge,” she finally blurted, “Four years from now, when we both finish school, we’ll meet right here.”
“In the airport terminal?” asked Ian, looking about. It wasn’t a very glamorous location. “To do what?”
“I don’t know…” said Friday, “Have an adventure?”
“What sort of adventure,” asked Ian, smiling.
“A mystery, of course,” said Friday. "

― R.A. Spratt , Never Fear (Friday Barnes, #8)