At the request of her sister and a community of scientists, Princess Luna is asked to investigte the odd happenings at a sceintific research facility in Tall Tale. What she finds is a long standing mystery invloving it's missing director, and a conspiracy involving her family and staff. As a result, Luna gets involved with the family drama, secrets, and skull-duggery of those invloved in order to thwart an act of revenge decades in the making.