This is really not my strong suit, but it was fun nonetheless. Even the titles and blurbs are AI generated, original idea is still mine :)

Blurb: When the new disco club opened in town, Jake and his friends couldn't wait to check it out. They loved dancing and having fun, and the club promised to be the coolest place ever. But they soon discovered that the club had a dark secret: it was run by zombies who wanted to turn everyone into undead dancers! Now Jake and his friends have to escape from the disco zombies before they become their next victims. Will they make it out alive or will they join the groovy graveyard? Find out in Goosebumps: Disco of the Dead!
Prompt: style of goosebumps, full - body, low - angle, a disco zombie, wearing a leisure suit, on the dance floor

Blurb: You've been working hard on your project for months, but when you come to the office one morning, you find that all your files are gone. No backups, no traces, no clues. Who could have done this? And why? You have to find out before your boss fires you, or worse. But as you start to investigate, you realize that something sinister is going on in your workplace. There are strange noises, creepy shadows, and mysterious messages. And you're not the only one who's missing something. Your co-workers are acting weird, and some of them have disappeared altogether. What is happening in this office of horrors? And can you survive long enough to finish your project? Find out in... The Missing Project!
Prompt: style of goosebumps, scared man with computer, computer is smoking, brown, red, dark

For those still busy with their entry, I found this template for a Goosebumps book cover. The Photoshop and Affinity Photo files are very handy.