Enter your name, email address, and mailing address and upload your preorder receipt image (screenshot or scan of receipt) for The Last Kids on Earth and the Nightmare King by Max Brallier at http://woobox.com/8muh84 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 6 weeks for inflatable zombie slugger and signed bookplate to arrive by mail. You may also enter your child’s first name and last initial in the boxes titled “Child's First Name" and "Child's Last Name Initial” for publication in the acknowledgements section of the next book in the Last Kids on Earth series to be released in the Fall of 2018. Offer valid between August 14, 2017 and September 25, 2017.