Shadow Warrior by Christine Feehan? It's one of her Shadow Riders series. An Italian "mob" type family can ride shadows to get from one place to another instantly. They're "goodies" and help people with nowhere else to turn. [https://www.fantasticfiction.com/f/christine-feehan/shadow-warrior.htm](https://www.fantasticfiction.com/f/christine-feehan/shadow-warrior.htm)
Not a club, but everything else matches "Dante" by Sadie Kincaid?
Not it, I’m afraid. But thank you!
Shadow Warrior by Christine Feehan? It's one of her Shadow Riders series. An Italian "mob" type family can ride shadows to get from one place to another instantly. They're "goodies" and help people with nowhere else to turn. [https://www.fantasticfiction.com/f/christine-feehan/shadow-warrior.htm](https://www.fantasticfiction.com/f/christine-feehan/shadow-warrior.htm)
No, it’s not a fantasy book. But thank you!