Summary: In Bloom by Paul Tremblay is a creepy short story about a journalist, Heidi Cohen, investigating toxic algae blooms in Cape Cod. She meets a local, Jimmy, who shares a mysterious and terrifying experience from his past that might be connected to the blooms. As the story unfolds, the lines between reality and hallucinations blur, leaving the reader questioning what's real.

Characters:
- Heidi Cohen: The protagonist, a determined journalist, felt somewhat underdeveloped given the short story format. Her character wasn't as fleshed out as I would've liked.
- Jimmy: The local with a mysterious past. His character was more intriguing, but his story felt a bit disjointed from Heidi's investigation at times.

Romance: N/A - There's no romance in this story. It's purely a horror/thriller tale.

Overall Review:
In Bloom is a chilling short story that effectively builds tension and unease. Tremblay's writing is engaging, and the atmosphere he creates is palpable. However, given its short length, the story felt a bit rushed, and some elements could've been explored further. Overall, it's a solid addition to the Creature Feature collection and perfect for a quick, petrifying read.