Barry Lyga

Jazz Dent, who has been shot and left to die in New York City, his girlfriend, Connie, who is in the clutches of Jazz's serial killer father, Billy, and his best friend, Howie, who is bleeding to death on the floor of Jazz's own home in tiny Lobo's Nod, must all rise above the horrors their lives have become and find a way to come together in pursuit of Billy.

A chunk of old memory, adrift in a pool of blood. Sebastian Cody did something horrible, something no one--not even Sebastian himself--can forgive. At the age of four, he accidentally shot and killed his infant sister with his father's gun. Now, ten years later, Sebastian has lived with the guilt and horror for his entire life. With his best friend away for the summer, Sebastian has only a new friend--Aneesa--to distract him from his darkest thoughts....

A fifteen-year-old "geek" who keeps a list of the high school jocks and others who torment him, and pours his energy into creating a great graphic novel, encounters Kyra, Goth Girl, who helps change his outlook on almost everything, including himself.

Time is a funny thing in the hospital. In the mental ward. You lose track of it easily. After six months in the Maryland Mental Health Unit, Kyra Sellers, a.k.a. Goth Girl, is going home. Unfortunately, she’s about to find out that while she was away, she lost track of more than time.
Kyra is back in black, feeling good, and ready to make up with the only person who’s ever appreciated her for who she really is.

But

...

"Set in a future world of environmental collapse and mass poverty, where a mysterious boy named Rose discovers he possesses inhuman powers that can irrevocably change the lives of everyone on the planet"--

This is the story of the small town sheriff who captured one of the world's most ruthless and cunning murderers. A prequel to the New York Times bestselling thriller, I Hunt Killers.
It all started with Dead Girl #1 and Dead Girl #2, the first killings in the sleepy town of Lobo's Nod in decades. Two murders: just a coincidence, or something more sinister? One thing's for sure—it was definitely inconvenient in a year when...

"Follows Barry Allen as he continues his mission to protect Central City from the sinister Hocus Pocus--but this time, a new evil lurks beneath the city streets"--

"When the Green Arrow needs help tracking down a sinister bomber in Star City, speedster Barry Allen is out the door in a flash. But as the Flash saves the day with his friends on Team Arrow, a huge dimensional rift appears over his hometown of Central City--and thousands of refugees with superspeed come pouring out. Can the combined skills of Team Arrow and the Flash's friends at S.T.A.R. Labs manage the chaos long enough to stop the rift from tearing...

While the Flash and Team Arrow closed the dimensional rift looming over Central City, they still have plenty of chaos to deal with: Cisco and Curtis are lost in time, thousands of speedster refugees are now stuck on their earth, and a mad bomber is at large. But when Anti-Matter Man arrives on Supergirl's doorstep on her home of Earth-38, it'll be all hands on deck for a team-up of epic proportions to stop him.

Catch up with the super adventures of Barry Allen, also known as the Flash, in the third book of this middle-grade series. Featuring adventures not seen on TV, Barry continues his mission to protect Central City from sinister plots. The book builds upon the world of the popular TV show in a new medium by author Barry Lyga. Fans won't want to miss the exciting conclusion to the series!