Book 1

Thirteen-year-old Nellie is upset by her unconventional parents' decision to go to Colombia to adopt a baby and by the mysterious goings-on in the cemetery near her rural Pennsylvania home.

Book 2

Death by Babysitting

by Susan Kimmel Wright

Published 1 November 1994
As thirteen-year-old Nellie tries to solve the mystery surrounding a baby left at her church nursery, she gets some unexpected help from the dog her aunt has recently adopted.

Book 3

Dead Letters

by Susan Kimmel Wright

Published 12 December 1996
While trying to figure out who is responsible for stealing mail from nearby mailboxes, Nellie allows outward appearances to lead her to suspect a high school dropout, an aging actress, Sasquatch, and a lonely classmate.