Is The Missing Series By Margaret Peterson Haddix Suitable For Middle School Readers?

Warning: This is a reverse harem series and contains explicit scenes throughout (including M/M). Book 1 Six years ago, I gave everything to the boy who set my world on fire… my heart, my body, my trust. The next day, he vanished without a word. Life hasn’t been kind since. I buried my parents the same week I brought my newborn son home. At eighteen, I became both a mother and a guardian to my teenage sister, and now I've discovered my husband is living a double life. My son, Jaxon, is angry and acting out so it's time for a fresh start. I never expected that fresh start to lead me to a sleepy mountain town hiding a secret… or back to him. Because this town borders a hidden pack of wolf shifters, and one of their alphas is the same boy who left me with more than just a broken heart. He left me with his son. Book 2 Poppy was never the quiet one. While her sister survived by holding everything together, Poppy survived by feeling everything out loud, until devastating truths and impossible revelations smothered the fire inside her with shadows she can’t explain. Whispers creep into her mind. Voices call her name in the dark. As Paige’s light rises, Poppy’s darkness answers. Thrown into a supernatural world she never asked for, Poppy finds herself surrounded by wolves who look at her like fate has already claimed her. Their pull is undeniable. Their attention suffocating, and the darkness inside her is growing harder to ignore. With threats closing in, Poppy must decide whether to keep running from what she’s becoming… or embrace the role destiny has given her. Light may have saved the world, but darkness decides how it ends.

Danika has the perfect life. Perfect family. Perfect friends. Perfect grades. Perfect mate. Perfect, right? No. She has a few secrets she hasn’t admitted. Secrets like Hadley Robertson. So how does she escape this? Reading. And Hadley… he has a few secrets of his own too.

When Emma's sister vanishes, she's thrust into a deadly game of cat and mouse. A mysterious figure, hidden behind a mask, demands Emma play a twisted game of puzzles and clues to rescue her sister. With time running out, Emma must use her wits to unravel the mysteries and face the sinister forces behind the game. But as the stakes grow higher, Emma realizes the game is designed to test her limits, and the truth about her sister's disappearance may be more terrifying than she ever imagined. Will Emma solve the puzzles and save her sister, or will she become the game's next victim?

Her name is Luna. No one sees her except her twin sister. She envies her twin sister's life, although their parents never failed to tell her they love her even though they can't see her. Luna was in total darkness while her twin sister had the life she wanted to be. She wanted to be as happy as her twin sister, but how? She's invisible. The thought depresses her so much that it leads her to run away from the palace. However, she accidentally fell into the portal, going to other dimensions that she didn't know existed. She doesn't know how to come back to her world. Later on, she accepts her fate and lives a life of being in different places, especially when something strange happens to her. She misses her family so much, but how could she come back? Will she remain forever in different dimensions? Will she survive alone? Unexpectedly, a twist happened. Leena, twin sister of Luna, fell into the portal too when she learned that her twin sister accidentally fell into the mysterious portal tree. However, fate never let them see each other and she's gone to a different dimension. The twins face a different path. Will Leena find Luna? Will they reunite again?

The Forgotten. Massacre and regicide under the orders of an unspeakably evil priesthood decimate the ranks of the honourable Galadon Knights, and destroy the Royal family who the Knights are sworn to protect. Now outlawed and despised, the Knights are forced, for four generations, 120 years, to hide in secret as they regain their strength for their final confrontation with the religious order. But their biggest secret is that they also hide the last surviving member of the Royal family. Finally strong enough, the last surviving Royal is brought out of hiding and told of her heritage and true identity. Unfortunately a key part of her heritage, a mysterious and magical amethyst pendant, is lost and without it her legitimacy to the throne can not be proven. So starts a desperate quest to search for the pendant to prove the claim of Princess Astrid who must be crowned before the first full moon after her 21st birthday. As more of her heritage is discovered so is passionate romance, bloody battles, betrayal, magic and alliances with the mysterious Elves, Dwarves, Dryads and Mrawlers of the planet. With her 21st birthday quickly approaching, the amethyst lost and the armies are moving into position for a final confrontation, this is their last chance, and time is running out.

Amy Wilkes feels invisible at school, since she is quiet and shy, reason why people either ignore her or mock her, except her childhood friend, Dana. The other person besides her best friend that is nice to her is Jonah Parker, the popular and attractive soccer team captain whom several girls have a crush on, Amy included. Her life drastically changes when her school makes a school trip to a biology lab that suffers an accident. At first nothing seems to have changed but after that incident she discovers she has the ability to be invisible at her own will. She feels even more akward after discovering this new ability, as she is scared to tell her brother Sean, who is also her guardian, and her best friend about this discovery and how they will react. She tries to be normal trying to control this new ability, wishing to be unnoticed, and "invisible", as she has always been as she fears to be treated like a freak if her secret is discovered. However, she will discover her life will no longer be normal, now adjusting to a new ability she never asked for but seems to be part of her now.