SEQUENCE SERIES BOOK 1| TRILOGY - When a harmless game inside a Retreat Center Building turns into a deadly pattern of real-life tragedies, Sierra Raquelle Montana begins to realize that the envelopes they received were never a prank-they were warnings. As classmates start dying in the exact Alphabetical order, fear spreads, friendships crack, and trust becomes the most dangerous risk of all. With secrets hiding behind familiar faces and a shadowy "sequence" deciding who falls next, Sierra and her friends must uncover the truth before their initial is next-because in this game, no one loses by accident, and survival might mean questioning everyone she once called a friend.