Halo followed one year in the life of Billy Halo, a psychotic high school teenager starting his senior year in a New Orleans prep school. Intelligent, handsome, and murderous, the 6'2" all-state linebacker is determined to win the school's Christopher Award, granted to an exceptional graduating senior in place of valedictorian honors. To reach this end, Halo conspires to kill anyone who stands in his way, including fellow students and teachers.

Halo was published in October, 1987 and marketed under the genre of horror.

Day's second novel, The Hacker, told a story of pre-Internet bulletin board systems, or BBS, set in the late eighties. One of the first novels to introduce the concept of e-mail and the message board, The Hacker detailed the rise and fall of the fictional New Orleans BBS The Surgery, system-operated (SYSOP) by a reclusive Tulane computer science student. A shadowy user called The Succubus hacks into The Surgery and wreaks havoc, eventually threatening the lives of all Surgery board users.

The Hacker was published in 1989. The ideas and concepts in the novel were so new that the publishers failed to market the novel properly and thus sales tanked and the book quickly went out of print. However, The Hacker was nominated for the 1990 Prometheus Award and enjoyed decent critical reviews. Other 1990 nominees included Poul Anderson and Robert Heinlein.

Chet Day currently earns his living owning and operating a large natural health website called 'Health and Beyond' in rural North Carolina. He has a lot of various recipes, diet advice, and various treatments for alternative medicine such as fasting and homeopathy.