Upload a copy of your order receipt for The Last Kids on Earth and the Forbidden Fortress by Max Brallier to participate in this bonus offering, while supplies last. Must be 18 years of age or older at the time of entry. Void where prohibited or restricted by law. No groups, club, or organizations may participate. Limited to one request per IP address. Incomplete forms will not be eligible. Multiple entries from the same email address will be automatically disqualified. US mailing address required. Please allow 8 weeks after the entry period for one (1) exclusive sunglasses and (1) signed bookplate to arrive by mail. By entering, you agree to Penguin Random House's privacy policy. Offer valid between July 13, 2022 to September 12, 2022.