Geronimo Stilton's assistant and her uncle persuade the editor of "The Rodent's Gazette" to attend a book fair and to publish the prophecies of an enigmatic seer--if his greatest rival does not get the manuscript first.

When Geronimo spies the most beautiful rodent in the world at the coffee shop, he is determined to prove his love to her, in spite of having tripped and ended up with his tail in a toaster. En busca de la maravilla perdida. Todo empezó con un café con leche: mi loca pasión por Provoleta, la expedición a la Isla Mariposa en busca de la Octava Maravilla ...