Dec. 10 (UPI) -- Madeleine Wickham, better known as Sophie Kinsella, the pen name she used to write Confessions of a Shopaholic, died after being diagnosed with glioblastoma. She was 55.

Her family confirmed her death in an Instagram tribute Wednesday.

"She died peacefully, with her final days filled with her true loves: family and music and warmth and Christmas and joy," the social media post reads. "We can't imagine what life will be like without her radiance and love of life. Despite her illness, which she bore with unimaginable courage, Sophie counted herself truly blessed to have such wonderful family and friends, and to have had the extraordinary success of her writing career. She took nothing for granted and was forever grateful for the love she received."

Wickham announced her battle with brain cancer in 2024, about two years after her diagnosis

View this post on Instagram