Alex Melody and Jamie Devin were born in Melbourne, Australia. They had a pureblood wizard mother whom dropped everything to be together with their Muggle father, a cartoonist residing in that city. Alex is a squib, and Jamie is a wizard.
There isn't much to speak of regarding their early childhood - the only thing of note is that she was enrolled in gymnastics as means of dealing with her energy, as it was the closest physical activity to their home. Wanting to make her father proud, she gave it her best and proved to excel in it - she was even considered for actual competition by her trainers.
It all came to an end, however, when the twins were 8 years old. Their father left without a trace, and a severe economic burden followed. While Jamie managed to escape that hell due to his magical abilities by enrolling in Tallygarunga, Alex was forced to live through it with her mother. They had to pull out of gymnastics because it was too expensive, and she soon had nothing more than her father's pencils to spend her time with.
She didn't take this well at all. In fact, it spawned numerous anger and behavior issues which her mother was having a very hard time quelling. They only got worse when she was ripped from her hometown and brought to Narrie, the saving grace being that, over time, she gradually opened up to the cousin that she met there.
Somehow, this cousin got through to her. Somehow, Alex found that she could trust someone again. Over the years this gave her enough of a solid foundation to calm down, mellow out and start over. For once in her life she was content, wanting to do things for herself and her family rather than out of spite for someone whom wasn't even there. Her art became impeccable, and she focused some time on a drum kit her uncle had purchased for her. For once, she actually had skills that could serve her well.
Eventually, as Jamie went to play for the local Melbourne Quidditch team, she moved out of Narrie alongside him to pursue her art studies. Just about to graduate, she is hoping she manages to break out sometime soon - whether it be in drums, or in cartoons.