Sienna Mercer, a successful author, was born in Toronto, Canada and grew up as an only child. She often wished for a sibling, especially a twin, and this longing became the inspiration for her writing. Mercer creates characters that she can relate to, giving them the twin sister she always wanted. This is evident in her popular series "My Sister the Vampire," where she writes about a girl who discovers she has a long-lost twin sister who is a vampire.
Mercer's love for writing began as a teenager, when she would spend hours on end filling red leather notebooks with stories. Now, she writes in her attic, surrounded by photos of her travels and memories of her past. Although she doesn't have a twin sister in real life, she infuses her characters with the fun, fabulous, and sometimes spooky elements that she would have wanted in a sibling.
Mercer's writing process is deeply rooted in her imagination. She often daydreams about her characters and their adventures, and these daydreams inspire her writing. She has a particular fascination with vampires, which is evident in her "My Sister the Vampire" series. Despite her success as an author, Mercer remains humble and true to her roots, keeping the red leather notebooks from her teenage years as a reminder of where she started. She currently resides in Toronto, where she continues to write and daydream about her beloved characters.