How Does Divergent Series Books Four Connect To The Original Trilogy?

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.

I spent my whole life trying to be invisible. I was the girl who was too broken to survive high school, the one who tried to end it all after they had filmed themselves cutting off her hair. The girl who had to be homeschooled for eight years. So when my parents forced me into one final year of university, I made a deal with them. I'll give it a try, if I hated it, I'd disappear forever. I walked those halls with my head down, drowning in oversized clothes, praying no one would notice me. But then I met him. Dreyven. The one person who pushed me so far that I lost control and slapped him. ​But what I didn't know was that he had three identical brothers, and I had just started a war. ​They planned their revenge together: make me fall in love with them, one by one, thinking they were the same person, then break my heart and leave me destroyed. ​I gave him everything: my trust, my body, my heart. ​I thought I was falling in love with one perfect man who kept surprising me with new facets of his personality. ​When I discovered the truth, it shattered me. They were four brothers who had used me for revenge, four men who had passed me between them like a toy, four liars who had laughed while I fell apart. ​So disappeared. ​Five years later, I wasn't that broken girl anymore. I had built an empire. I knew their secrets. I knew their weaknesses. ​And I was going to destroy them the way they destroyed me. ​But revenge had a price and I had to learn that, ​some love stories are simple. But ours was written in scars, secrets, and second chances.

Adrian is heartbroken as his first mate has betrayed him with a hunter. Her untimely death made him a widow. All his hopes and dreams for the future with Amber have gone up in smoke. He no longer wants a mate and does not want to entertain his second chance mate, Sinclair. Sinclair has always felt like an outsider and outcast. She bounced from foster home to foster home and her foster family was terrible to her. After Amber died, Adrian couldn't take staying in Blue Moon with the memories of his late mate. He went back to Blackstone to be the new beta, he finds out that Sinclair is his second chance mate. She is excited and he is disappointed. Feeling rejection for what seems like the umpteenth time in her life, she runs away and rejects the pack and decides to live a rogue life alone since she feels unwanted. Adrian and Sinclair have to work together to clear all the misunderstandings and come together to help Blackstone defeat the war that is fast approaching. Can they do it though? One is still mourning and they other feels unwanted. How will they work together to help the family defeat Julian?

Years later Nora's and Jace's daughter Mallory turns of age. With no wolf and no powers, Mallory feels weak and unworthy. The world has been at peace since the last war but now attacks on all packs have begun and they are building. Someone is wanting revenge; someone is wanting to take it all. During an attack Cross River is taken and Jace and Nora held captive. Mallory escaped only to forget who she is. Running into a stranger who cannot turn her away no matter how badly he wants to. The stranger is not who he seems and may be her secrete enemy. Can he help her remember who she is? Can Mallory find a way to save her family and pack?

In a war-torn world where supernatural beings known as "subnaturals" or "subs" have emerged from hiding, triggering a global conflict that has claimed hundreds of thousands of lives, eighteen-year-old Lena Hargrove has spent the past six years as a ward of the state following her parents' deaths. Renowned as war heroes who sacrificed themselves to rescue their daughter from kidnappers, Lena's parents were largely absent throughout her childhood, leaving her with complicated feelings about their legacy and her own identity. As Lena struggles to understand her newfound identity and the abilities that begin to manifest, she uncovers a web of secrets about her parents' true role in the war. They weren't just fighting for humanity; they were part of a hidden movement working toward peace between humans and subnaturals. More importantly, Lena learns she was kidnapped not by chance. Hunted by extremists from both sides who either want to use her power or eliminate her entirely, Lena must navigate a dangerous landscape of political intrigue and ancient supernatural factions. Along the way, she assembles an unlikely group of allies—humans sympathetic to the sub cause, subs living in hiding among humans, and others like her caught between worlds. As her powers grow and her understanding of both sides deepens, Lena realizes that ending the war might require more than diplomacy or combat—it might demand a fundamental reimagining of what it means to be human or supernatural in a world where the boundaries between the two are increasingly blurred. But to fulfill her destiny, Lena must first confront the truth about her kidnapping, her parents' sacrifice, —a truth that will test her loyalty to both sides of her heritage and force her to decide what kind of world she wants to fight for.

16 year old Scarlet Paine struggles to understand what’s happening to her, as she wakes and realizes she’s becoming a vampire. Alienated from her parents and her friends, the only person she has left to turn to is Sage, the mysterious boy who has quickly become the love of her life. Yet Sage, whose house she finds boarded up, is nowhere to be found. <br><br>Scarlet, alone in the world, with nowhere left to turn, seeks out her friends and tries to reconcile with them. All seems to be patched up when they invite her to join them on a trip to an abandoned island in the Hudson—but as things get out of hand and Scarlet’s true powers are revealed, who her friends and enemies are becomes more confusing than ever. <br><br>Blake, still interested in her, tries to make amends. He seems sincere, and Scarlet is confused as she has to grapple with whether to be with Blake or to wait for Sage, who is nowhere to be found. <br><br>When Scarlet finally finds Sage, they have the most romantic time of her life; yet it is tinged with tragedy, as Sage is dying, with but a few days left to live. <br><br>Kyle, meanwhile, turned into the only other vampire left in the world, is on a murderous rampage, seeking Scarlet; Caitlin and Caleb consult with Aiden, and they each embark on different missions—Caleb to stop and kill Kyle, and Caitlin, to the famed Yale University library, to research the ancient relic rumored to both cure and kill vampires for all time. <br><br>It is a race against time, and it may be too late. Scarlet is changing rapidly, barely able to control what she’s becoming, and Sage is dying with each passing moment. As the book culminates in an action-packed, shocking twist, Scarlet will be left with a monumental choice—one that will change the world forever. Will Scarlet make the ultimate sacrifice to save Sage’s life? Will she risk everything she has for love?