Rupert's agent brings him one of his books that has just been translated into Spanish. Later that day, a Mexican woman arrives at the Wilde's flat in York. She turns out to be the person who translates Rupert's books into Spanish. She is also the wife of a Mexican government minister who is in England on a state visit. She tells Rupert and Amy that her daughter came to England a year ago to study at a music college in Harrogate but, when she went to the college to see her daughter, she is told that her daughter never started her course. Rupert agrees to investigate and ropes Amy in as usual.