Hannah has published a book about her therapy sheep. Cancer patient Hannah Russell, 25, found an unusual method to cope with her treatment - therapy sheep, Izzy and Ida, worth £14k, pictured at her home in North Yorks, Aug 5 2022. . See SWNS story SWSYsheep. A cancer patient found an unusual method to cope with her treatment - therapy sheep worth £14k. Hannah Russell, 25, was diagnosed with stage three sarcoma cancer in 2019 and then skin cancer a year later. She underwent six operations and countless rounds of radiotherapy over a two-year span.She says the ordeal took a huge toll on both her physical and mental health - and she needed something to cheer her up.