The Bees are a swarm of insects appearing in the Goosebumps book Why I'm Afraid of Bees.
Other appearances
A swarm of bees appears in the Goosebumps movie. They are among the Goosebumps creations that assist Slappy into attacking Madison High School to target R.L. Stine. When the bees get into the school, Zach uses a blade to fight them.