Just after twelve-year-old Emily and her family move to San Francisco, she teams up with new friend James to follow clues in an odd book they find, hoping to figure out its secrets before the men who attacked Emily's hero, publisher Garrison Griswold, solve the mystery or come after the friends.

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.

"In May of 1890, Enola Holmes is finally fully on her own and, no longer hiding from her older brothers Sherlock and Mycroft, attending classes and occasionally pursuing her chosen profession as a scientific perditorian, a finder of lost things and people. Wolcott Balestier, the representative of an American book publisher, arrived in London on a singular mission - to contract with English authors for their latest works. When Balestier disappears...