What is a summary about the Gossip Girl the carlyles book?

"Gossip Girl: The Carlyles" is a spin-off of the original "Gossip Girl" series, focusing on a new set of characters living in the Upper East Side of Manhattan. The story revolves around the affluent Carlyle family, particularly the three siblings—Mimi, the socialite; the brooding and artistic older brother, and the charming younger brother. As they navigate the challenges of elite high school life, romantic entanglements, and the ever-watchful Gossip Girl, secrets and scandals unfold, showcasing the complexities of friendship and family dynamics in their glamorous world. The narrative is infused with drama, intrigue, and the signature wit of the Gossip Girl franchise.