Official Rules HOW TO ENTER: NO PURCHASE NECESSARY. Enter by Retweeting the tweet associated with these rules between 10:00 AM (ET) March 26, 2015, and 10:00 AM (ET) on March 27, 2015. LIMIT ONE ENTRY PER PERSON. Sponsor is not responsible for computer malfunctions, including but not limited to any error, omission, interruption, deletion, defect, delay in operation or transmission or communications line failure; or theft, destruction or unauthorized access to entrant’s computer. Forms that contain errors, are incomplete or corrupted will not be accepted. Sponsor reserves the right to disqualify entries from anyone tampering with the entry process. ELIGIBILITY: This sweepstakes is open to legal residents of the United States (excluding Puerto Rico) over the age of 18 at time of entry. All federal, state, and local regulations apply. Void where prohibited. Employees of Random House LLC its parent, subsidiaries, affiliates, suppliers, and agencies, and their immediate family members and persons living in their household are not eligible to enter this sweepstakes. PRIZE: One (1) Grand Prize winner will receive: One copy of Doctor Who: The Blood Cell 9780804140928 One copy of Doctor Who: The Crawling Terror 9780804140904 One copy of Doctor Who: Engines of War 9780553447668 One copy of Doctor Who: Silhouette 9780804140881 One copy of Doctor Who: Harvest of Time 9780385346801 One copy of Doctor Who: Plague of Cybermen 9780385346764 One copy of Doctor Who: Shroud of Sorrow 9780385346788 One copy of Doctor Who: The Dalek 9780385346740 If for any reason all or part of the prize is not available or cannot be fulfilled, Sponsor reserves the right to substitute a prize of equal or greater value, including, but not limited to, cash equivalent. Prizes are not transferable and cannot be assigned. No prize or cash substitutes allowed, except at the discretion of the Sponsor as set forth above. WINNER SELECTION: One (1) Grand Prize Winner will be chosen at random by 5 PM EST March 27, 2015, from all eligible entries received by the entry deadline. Odds of winning depend on the number of eligible entries received. Sponsor will notify Winner by tweeting with their handle. Winners will be required to reply via Direct Message to provide his/her address for mailing of the prize within one (1) days from notification. If a winner notification of the Prize is returned as undeliverable, or if a Winner fails to timely respond to the notification or declines the Prize, the Prize will be awarded to an alternate winner, selected in a random drawing among the remaining entries. WINNER LIST: For the name of the Winner available after March 27, 2015, send a stamped, self-addressed envelope to Doctor Who Sweeps, Attn: Alana Buckbee, Random House LLC, 1745 Broadway, New York, NY 10019 by March 31, 2015. GENERAL CONDITIONS: By participating in this sweepstakes, entrants agree to abide by these official rules. Sponsor is not responsible for injury or damage to any computer, other equipment, or person relating to or resulting from participation in the sweepstakes. Entrants release Sponsor, its agencies, and assigns from any liability, damage and/or loss resulting from participating in this sweepstakes and/or the acceptance, use or misuse of the prize. Acceptance of the prize constitutes permission for Sponsor to publish, post online, or otherwise refer to the names of the Winners in any and all forms and media throughout the world, and for any and all publicity or promotional purposes, without obligation or compensation, except where prohibited by law. SPONSOR: The Crown Publishing Group, a division of Penguin Random House LLC, 1745 Broadway, New York, NY 10019.