Is Fourth Wing YA Or Adult?

Lila Harper gave the Black quadruplets her virginity, her loyalty, her soul. Ethan, Marcus, Callum, and Davian were supposed to be her fated mates, destined to share her, protect her, love her. Instead, they rejected her on her eighteenth birthday, called her weak, and threw her out to die. Three years later, she's back and she's not the broken omega they discarded. Something happened the night they severed the bond, something that rewrote her from the inside out. Now she walks through Blackwood Territory with power that makes Alphas kneel and a hunger that won't stop until she's taken everything they love. The quadruplets want her back. The bond is screaming to reconnect. But Lila didn't survive the rejection to fall into their arms again. She survived to watch them beg. And when four Alphas who've never begged for anything start crawling back to the mate they destroyed? That's when the real violence begins.

"This isn't just a school. It's something more." Zeda Iverson thought high school was done, but her parents insisted on Shadowbrook Academy – a mysterious school she'd never heard of – instead of college. She soon discovers Shadowbrook hides secrets, and the four powerful princes who rule the academy are all obsessed with her. But their attention becomes the least of her worries as a dangerous revolution looms, threatening to destroy the academy and the princes Zeda has fallen in love with. Only Zeda holds the power to stop the coming chaos. Yet, her abilities are locked away. Can she unlock her potential and save everyone she loves before it's too late?

On her eighteenth birthday, Aria Veyne’s life is destroyed by a single burst of ancient magic. Kidnapped by powerful elders and taken to Ebonveil Academy, a school built to monitor the world’s most dangerous supernaturals, Aria quickly learns one terrifying truth. No one knows what she is. Not even her. But the moment her powers awakened, three heirs felt it. Archer Nightblade, the powerful werewolf heir, fights instincts that demand he protect her. Lucien Blackwell, the dangerously composed vampire heir, hides a hunger that has nothing to do with blood. Jasper Ashwyck, the charming fae heir, can’t decide if Aria is his greatest curiosity… or his greatest weakness. The closer Aria gets to them, the stronger her mysterious magic becomes. As secrets buried for centuries begin to surface, the elders realize they may have made a catastrophic mistake. Because Aria isn’t just another student. She may be the one person capable of changing the supernatural world forever. And if the darkness hunting her doesn’t claim her first, the girl with violet eyes just might.

I only wanted to survive senior year. Keep my head down, graduate, and leave Blackthorne Academy behind. But the moment I stepped through its iron gates, I became prey. The Academy is wrong in every way—no mirrors in the dorms, wolves howling during study hall, and strict orders to never leave your room on red moon nights. And then there are the four Alphas who have marked me with their eyes, their obsession, and their danger. Ronan Veyr, the storm-eyed heir destined for the crown, who recoils at my touch yet can’t seem to stay away. Cassian Drax, the golden boy trickster whose dangerous smile hides a ruthless streak. Malachai Frost, the untouchable prodigy who shadows me like a silent warden. And Professor Adrian Vale, the man who looks at me as if I’m a memory he can’t bury. They shouldn’t want me. I have no wolf, no pack, no power. But whispers of a legacy trail me through Blackthorne’s haunted corridors—a bloodline strong enough to crown kings… and dangerous enough to kill for. Strange visions tear through my body whenever one of them is near. My strength is rising, my secret unraveling, and I’m beginning to understand why my mother died to protect it. Because I am not wolf. I am something older. Something every Alpha was born to obey. And if I want to leave Blackthorne alive, I must decide: Will I let one of them claim me— or will I rise to command them all?

Isadora didn’t want to come to Ashwyck Academy. It wasn’t the haunting towers or the iron gates that unnerved her. It wasn’t the students—dark, beautiful, terrifying things cloaked in magic and menace. It was what it meant. Coming here was a last resort. A whispered admission from her parents that something was wrong with her. That despite being born of a temptress and a mind-bending killer, despite all the bloodlines and rituals and whispered prophecies—Isadora was still painfully, tragically human. She was quiet, clever, and careful. Not powerful. Not wicked. Not like the others. Her parents called it “late blooming.” The High Table called it “defective.” But no one said it out loud. Instead, they tucked her into Ashwyck like a final gamble and hoped the academy could awaken whatever dark inheritance slumbered beneath her skin. She hadn’t wanted to come. She still doesn’t belong. But Ashwyck has its own secrets. And Isadora is about to discover that the parts of her she’s most afraid of are the ones they’ve been waiting for.

She was never meant to survive their world. Now she’s the only one who can burn it down. Lyra thought she was just a girl with strange dreams and a birthmark that shimmered beneath moonlight. But when a celestial event rips her from Earth and drops her into the brutal halls of the Academy of the Ascendant, she discovers a deadly truth: she’s the lost heir of a realm that erased her bloodline—and she’s carrying the forbidden magic that could unravel it all. The Academy is ruled by power and hierarchy. The weak are crushed. The strong ascend. And the Triad—three elite heirs born of elemental fire, storm, and air—will do anything to break her. Until they realize she’s more powerful than all of them. Mocked. Hunted. Desired. As Lyra unlocks the four elemental affinities no student should possess, she becomes the center of a prophecy that the Council has killed to keep buried. But it’s the fifth element—the forbidden Void—that marks her for something more. Survival means mastering her magic. Love could cost her everything. And rebellion might just start with a kiss. Perfect for fans of Zodiac Academy, Throne of Glass, and The Cruel Prince, Marked by Starlight is the explosive first book in a dark fantasy romance series filled with elemental magic, enemies-to-lovers heat, and a heroine who refuses to bow.