Echo must deal with the regular dramas of high school, in addition to grappling with the murder of her older sister, Zoë. But when Echo receives a diary from Zoë’s…

After two mysterious deaths at a college on the same night, seven students somehow connected receive invitations to a confessional booth hidden on the campus.

Before their eventual team-up with Scooby and the gang, bright and optimistic Daphne and whip-smart and analytical Velma are both mystery-solving teens who are best friends but have only met…