The insidiousness of cancer is not only the physical and mental toll of surviving treatment; it's the way that the disease tangles into every aspect of life.
When the doctors finally found Emma Walsh's cancer - an acute form of leukemia - it had impacted more than eight in every 10 cells of her body. When her parents, Brendan and Alex, were called into their oncologist's office, their lives and the lives of their three children - Will, Isabelle and Emma - were irrevocably split between the years before the diagnosis, and the countless nights of hospital treatment that would come after.
