My Sister the Vampire - Series 1 Collection Pack Set refers to a box set of the initial books in the popular children's series. The books center on the discovery of twin sisters, Olivia and Isabella, who were separated at birth. Olivia is a normal girl, while Isabella is a secret vampire. The series follows their attempts to adapt to each other's drastically different worlds, keeping Isabella's identity secret, and dealing with school and friendships. The collection is a fun blend of supernatural elements, humor, and relatable tween drama.
