Fern Longbottom has always been at odds with the Weasley twins after spending her seven years at Hogwarts thwarting their pranks as a Prefect or falling victim to them. When she finds her brother in their company after hours, she grows suspicious, assuming the worst. This leads her on an investigation, and inadvertently into the arms of Fred Weasley.

Her sixth year at Hogwarts was supposed to be relatively peaceful but after an incident on the Hogwarts express, Violet Wilkes finds herself the newest target of the Weasley twins. This, combined with a dark family secret, and the Triwizard tournament, makes her first few months back more exciting and stressful than every year before.