Jade is Christy's three-year-old sister from the My Naughty Little Puppy book New Tricks For Rascal. She appeared when Christy holds a picnic for Ellie and her mum. When Jade buys an ice cream, Rascal steals it and she starts howling, which gets Ellie in trouble. When Ellie goes to buy Jade another ice cream, Rascal refuses to eat his cone, which makes Jade giggle.