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 Midnight Blade by Max Brallier at https://woobox.com/xnuwm9 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 Last Kids on Earth Slime 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. Offer valid between April 29, 2019 and September 16, 2019.