I Write mysteries, having grown up on Agatha Christie and Sir Arthur Conan Doyle, then followed Dashiell Hammett and Raymond Chandler and mainlined into today's commercial fiction.
I am writing a Billie Bly series now, about a hard-boiled P.I. of the feminine persuasion. You can buy Bleeding Blue at donwestonbooks.com. If you like short stories, I recommend "Death Fits like a Glove," where Billie takes on a neighborhood pet-napping case which turns out rather deadly. If you like twists, this is for you.
My Billie Bly stories can have a bit of humor, but can also turn a bit dark sometimes as in "Murder: A Love Story." But overall I try to combine keeping it light and yet, suspenseful in my Billie Bly Series.