This is how the history of Gigi and Whisp goes in Crash, Thomas and Ryan Go to Monster High: 13 Wishes.
[The gang and ghouls follow Clawdeen]
Matau T. Monkey: So. What did you find while being trapped in the lantern with us?
Clawdeen Wolf: I found this.
[She holds up a Genie-ology]
Crash Bandicoot: It's like a biology on Genies. Written by the Brothers Grimm.
Evil Ryan: Mind if Ryan have a read?
[Clawdeen shakes her for "No, I don't mind"]
Ryan F-Freeman: [reading] It all began a long long time ago. In a strange and distant land.
Ryan F-Freeman and narrator: Mystery and magic rule.
[The scene change into pictures of
Narrator: It was the age of the genie. Gigi loved being a genie, granting wishes to her finders. Making their wishes come true, but, something was missing. When the 13 wishes were granted. She returned to her lantern, alone. Gigi was lonely. One of the Brothers Grimm wanted to help. He whispered an idea to the ear of the next finder and made a wish for Gigi. It was during a full eclipse and the magic of the wish transformed Gigi's shadow into Whisp. Always together, they were like sisters. But, Whisp wanted to be more then just a shadow. She wanted to be a genie too. She grew jealous of Gigi's power. Whisp discovered that she is not bound by the rules of the lantern.