Opal believes she was adopted into the Whiteley family when she was very young. She thinks her biological parents have died and are now are now angels in heaven, and so calls them her Angel Mother and Angel Father.

Opal often misses her Angel Mother and Angel Father and tells many stories about them.

"Opal believes that there are many little people that live in the woods."

Opal has given this name to a wood rat who is one of her favorite pets. Opal very often carries Thomas Chatterton Jupiter Zeus whenever she goes visiting or exploring.

Opal named her pet rat after the poet Thomas Chatterton, and two gods of classical mythology.