The Alpha's Lineage

In an underworld dominated by female werewolves, a struggle for supremacy brews as the Alpha female despite birthing numerous children remains heirless as the gods of the kingdom haven't recognized any of her offspring to be worthy of succeeding her, thereby risking a dark prophecy. The kingdom's heirloom goes missing and she risks the chances of going rogue. She sends Lance on an impossible quest to the human world where the elders of the kingdom suspect the necklace has been taken to. Lance on his quest finds more than what he bargained for. 
Meanwhile, Ivy Stroman, an introverted teen, discovers a mystical necklace on her 18th birthday. Odd occurrences follow, leading her to meet Lance, who's taken human form. Ivy gifts him the necklace, unaware of its significance.
Desperate to convince Ivy to return with him to the underworld, Lance encounters Gehal, Ivy's twin, who suspects his true identity. When Lance opens a portal, Gehal follows, leading to her capture by the vampires.
In the underworld, Ivy faces Lethana's cold reception and a daunting task: to journey to her past life and prove her competency.
Ivy's life in the human world is marred by a devastating medical diagnosis, leading her to withdraw from the world. On her 18th birthday, Ivy seeks solace in the forest, where she stumbles upon the necklace.
Lance's mission to find the heir takes a perilous turn as he enters the vampire realm. After a narrow escape, he loses the necklace.
Back in the underworld, the vampires invade, leading to a fierce battle. Daia's ferocity saves the day, but tension rises as Lethana seeks her heir.
Gehal encounters a stranger who leads him astray. Lance's quest takes him to Ivy's location, where he is misled by a prank. An old woman helps him, and Ivy discovers the necklace's power.
As Ivy's world blurs between dreams and reality, Lance explains her connection to the necklace. Together, they embark on a journey to confront Ivy's past and avert impending doom.