It was John's 30th birthday and he had planned the ultimate birthday party. He had invited all of his friends, hired a magician, rented a bouncy castle, and even hired Bill Murray to sing "Happy Birthday" to him.

However, as the party got underway, a serious problem arose. The magician, a novice in the art of goetia, had accidentally summoned a horde of ravenous demons from the First Book of the Lemegeton, also known as The Lesser Key of Solomon. These demons, including Astaroth and Paimon, were now wreaking havoc on the party, destroying everything in their path.

The magician, desperate to impress John and his friends, had foolishly attempted to summon these powerful beings without properly safeguarding himself and the partygoers. John was panicked and didn't know what to do.

"What have you done?!" John exclaimed, turning to the magician.

"I-I'm sorry, I didn't mean for this to happen," the magician stuttered, looking terrified.

The demons, sensing fear, began to grow in power and size. Astaroth let out a deafening roar, causing the ground to shake and the partygoers to scream in terror. Paimon cackled maniacally as he set fire to the bouncy castle, trapping several children inside.

Just when things seemed their bleakest, Bill Murray stepped in to save the day. He grabbed a microphone and declared, "Don't you worry, my dear John, we'll defeat these demons and have some fun!"

Bill then pulled out a giant slingshot and began pelting the demons with water balloons filled with holy water. As the demons writhed in agony, Bill led the group in a rousing game of "Duck, Duck, Goose."

"Come on, everyone, let's show these demons who's boss!" Bill shouted, dodging a fireball hurled by Paimon.

Despite the absurdity and danger of the situation, the partygoers joined in with gusto, laughing and cheering as they played. In the end, the demons were vanquished and John's birthday was saved.

"Thanks, Bill, I don't know what we would have done without you," John said, panting from all the excitement.

"No problem, buddy. That's what friends are for," Bill replied with a grin.

As the partygoers danced and sang, John couldn't help but feel grateful to Bill Murray for saving his life and his birthday. It wasn't the birthday he had planned, but it was still one of the most memorable days of his life. In the end, it wasn't the magician or the demons that made the party special, but the people who came to celebrate with him. And for that, John was truly grateful.