Whats the story on Jessie?
Jessie joined the Quest team about a year before the series takes place. Before that, she was living with her mother, Estella Velasquez, in South America. By the way, Brad Quentin’s JQ:TRA books got it wrong; Jessie’s mom is very much alive, and Jessie spends about half her time with her mother. So generally, when Jessie’s not in an episode, it can be assumed she’s with Mom. Jessie was introduced in the 1993 TV-movie Jonny’s Golden Quest (see below for more explanation on this).