Miguel Angel Hernandez Jr.

Miguel Angel Hernandez Jr. is a published author who specializes in murder and mystery novellas.

However, he loves to keep things fresh and interesting by dabbling in suspense, humor, horror, action, and even sci-fi.

His bestselling series, “Griffin Knight” centers around the adventures of renowned New York City detective Griffin Knight, a lone wolf who has a penchant for dangerous situations — even those beyond his jurisdiction.

As a writer, Hernandez aims to please …

Miguel Angel Hernandez Jr.

A killer is on the loose in New York City.

When I woke up this morning, I hadn't counted on this. I mean, sure, the life of a homicide detective will never be unicorns and rainbows, but any time where I'm called to a scene where the crime techs know the victim, it’s going to rank up there with some of the seriously bad days. Someone in New York has a vendetta and they have all the hallmarks of a long silent serial killer.

But where does this serial killer cross over with our victims? How are they related? How many more names are on his list? If I can't cut through the questions this guy is throwing my way, it's only going to be a matter of time before someone else ends up murdered.

Miguel Angel Hernandez Jr.
best mystery thriller authors

"Do Nothing: A Griffin Knight Murder Mystery Thriller by Miguel Angel Hernandez Jr. is the first short story in what promises to be a fascinating and gritty series of crime stories involving this protagonist, Homicide Detective Griffin Knight.

When Griffin is called to the scene of brutal torture and murder, he is instantly concerned when he discovers that the victim was “one of them”, District Attorney Natalie Costa. The perpetrator’s modus operandi is such that Griffin wonders if there is a new serial killer on the loose in New York City…” —Readers’ Favorite

Reader Views Five-Star Award

Do Nothing: A Griffin Knight Murder Mystery by Miguel Angel Hernandez Jr. is a heart-rate-inducing, nail-biting novella with plenty of twists and turns to engage readers. At only seventy pages, the thrilling action commences immediately after the first line. Stealthy pursuits and cat-and-mouse chase scenes further elevate the intensity. If you’re craving a clever, fast-paced whodunit sprinkled with the sarcasm of a snarky detective, this book will deliver! —Reader Views

5 Stars Indies Today Award

“…the story may conclude neatly, but Hernandez adds in a steep cliffhanger that will leave you clamoring for the next book in the series. Easy, breezy and a ton of fun, Do Nothing is a raucous read you’ll devour in one sitting.” —Indies Today

Literary Titan Silver Book Award

“The Literary Titan Book Awards are awarded to books that have astounded and amazed us with unique writing styles, vivid worlds, complex characters, and original ideas. These books deserve extraordinary praise and we are proud to acknowledge the hard work, dedication, and writing talent of these brilliant authors.” —Literary Titan

Amazon Reviews

Here are some five star reviews from amazon customers. You can check out more reviews here!

Celeste L.

Do Nothing: A Griffin Knight Murder Mystery Thriller by Miguel Angel Hernandez Jr. is a short crime mystery and thriller type of book. If you are looking for a quick read and love mysteries, then this is a great choice because this book is under 100 pages, and it only took me a little about an hour to read this book. Of course, with such a short story, it lacks in development, but the entertaining aspect of it was not lacking. I read this book in one sitting and did not get bored at all from it. Great thriller with unexpected twists and turns at the end.

Jihane kasbi

This review is upon the book Do nothing: a Griffin Knight murder mystery thriller by the author Miguel Angel Hernandez jr. This is a book with a good narrative, has a very decent amount of suspense, it’s also dark and descriptive with some of the bone-chilling events. For that reason, it’s not for the faint of heart. However, this book is perfect for fans of true crime, horror novels that don’t mind a little gore and some solid creepiness. I found this novel enthralling from start to finish, because there were twists and turns all over this book.


Do Nothing: A Griffin Knight Murder Mystery Thriller by Miguel Angel is a quick read under two that is worth diving into. The story gets going pretty quickly and you get engaged right away. A serial killer is on the loose in New York City and a gritty detective must figure out the case before it's too late. Well-paced with a traditional writing style and characters you feel you know on some level, this is the perfect murder mystery to pass the time with. Recommended.

Jae Thomas

Do nothing is a Griffin Knight murder mystery thriller book that really keeps you entertained and filled with mystery throughout. It’s written by Miguel Angel Hernandez Jr. and you follow a New York City homicide detective trying to solve the mystery of a serial killer. A serial killer who ends up murdering people that ended up knowing the crime tech, he struggles to find answers for the questions the killer is leaving for him. The killer seems to have a connection between each victim that is killed.