In the Charlotte Holmes series, the teen descendants of Sherlock Holmes and John Watson are destined to be rivals … or the ultimate crime-solving duo and in the explosive conclusion to the New York Times bestselling series, Holmes and Watson think they’re finally in the clear after graduating from Sherringford…but danger awaits in the hallowed halls of Oxford. We have 10 sets of the four Charlotte Holmes books to give away to 10 Riot readers! Just complete the form below to enter. This sweepstakes is open to residents of the United States (excluding Puerto Rico and all other US territories) and entries will be accepted until 11:44:59 pm, March 19, 2019. Winner will be randomly selected. Complete rules and eligibility requirements available here. Oops! We could not locate your form.