Author, a successful writer, had a just-completed manuscript for her new novel stored on her laptop computer. Somewhere on Author's recent book-signing tour, however, the laptop was lost or stolen. Frantic about the loss of her work, Author appeared on national media to announce a $50,000 reward for the return of her laptop. Graduate Student, who needs the money, immediately sent Author this e mail: "I promise to do whatever it takes to get your computer back to you." Author then responded, "I hope you are successful." After two weeks, however, Graduate Student quit searching and does not ever intend to resume searching. What is the legal relationship between Author and Graduate Student at this point?