Question: Which novel did Patrick Ness write from an idea of terminally ill, Siobhan Dowd?

Context paragraphs:
De Grote Donorshow: De Grote Donorshow (The Big Donor Show) was a reality television program which was broadcast in the Netherlands on Friday, June 1, 2007, by BNN.  The program involved a supposedly terminally ill 37-year-old woman donating a kidney to one of twenty-five people requiring a kidney transplantation.  After a first selection, three people remained.  Viewers were able to send advice on whom they thought she should choose to give her kidney to via text messages.  The profit made by the text messages was given to the Dutch Kidney Foundation.  The program, due to its controversial nature, had received heavy international criticism in the run-up to the broadcast.  In the end, it was revealed during the course of the show that the "terminally ill" woman was, in reality, an actress, although the three candidates were, in fact, real kidney patients; they were aware that Lisa was an actress, and participated because they were supportive of BNN's cause to give awareness to the limited number of organ donors in the Netherlands.

Uniform Rights of the Terminally Ill Act: The Uniform Rights of the Terminally Ill Act (1985, revised 1989), was recommended as a Uniform Act in the United States.  The Uniform Rights of the Terminally Ill Act subsequently was passed by many states.  The Uniform Rights of the Terminally Ill Act was replaced as a recommended Uniform act by the Uniform Health-Care Decision-making Act in 1993.  The law allows a person to declare a living will specifying that, if the situation arises, he or she does not wish to be kept alive through life support if terminally ill or in a coma.  The patient may also obtain a health care power of attorney.  This power of attorney appoints an agent to make medical decision for the patient in case the patient becomes incompetent.

A Monster Calls (film): A Monster Calls is a 2016 dark fantasy drama film directed by J. A. Bayona and written by Patrick Ness, based on his novel of the same name.  The film stars Sigourney Weaver, Felicity Jones, Toby Kebbell, Lewis MacDougall, and Liam Neeson, and tells the story of Conor (MacDougall), a child whose mother (Jones) is terminally ill; one night, he is visited by a giant tree-like monster (Neeson), who states that he will come back and tell Conor three stories.

A Monster Calls: A Monster Calls is a low fantasy novel written for children by Patrick Ness, from an original idea by Siobhan Dowd, illustrated by Jim Kay, and published by Walker in 2011.  Set in present-day England, it features a boy who struggles to cope with the consequences of his mother's terminal cancer; he is repeatedly visited in the middle of the night by a monster who tells stories.  Dowd was terminally ill with cancer herself when she started the story and died before she could write it.

The London Eye Mystery: The London Eye Mystery is a children's mystery novel by English author Siobhan Dowd.  First published in 2007, it tells the story of how Ted, a boy with Asperger syndrome, solves the mystery of how his cousin, Salim, seemingly vanishes from inside a sealed capsule on the London Eye.  It was Dowd's second children's novel and won six awards, including the School Library Journal Best Books of the Year Award 2008.

Seales v Attorney-General: Seales v Attorney-General [2015] NZHC 1239 was a 2015 court case concerned with whether a doctor could assist a terminally ill patient in ending her own life.  Wellington lawyer Lecretia Seales, terminally ill from a brain tumour, sought High Court declarations to the effect that her doctor would not be committing murder, manslaughter or assisting a suicide if he assisted in her euthanasia.  Seales also sought, as an alternative, that the court make declarations that the Crimes Act was not consistent with the New Zealand Bill of Rights Act 1990.  The Court declined to make any of the declarations sought by Seales.  Seales died of her illness the day after the judgment was delivered.

Patrick Ness: Patrick Ness (born 17 October 1971) is a British-American author, journalist, lecturer, and screenwriter.  He was born in the United States and moved to London at the age of 28, and now holds dual citizenship.  He is best known for his books for young adults, including the "Chaos Walking" trilogy and "A Monster Calls".

California End of Life Option Act: California End of Life Option Act is a law enacted in June 2016 which allows terminally ill adults resident in the state of California to access medical aid in dying by self-administering lethal drugs, provided specific circumstances are met.  The law was signed in by California governor Jerry Brown in October 2015, making California the fifth state to allow physicians to prescribe drugs to end the life of a terminally ill patient, often referred to as physician-assisted suicide.

Hospice: Hospice care is a type of care and philosophy of care that focuses on the palliation of a chronically ill, terminally ill or seriously ill patient's pain and symptoms, and attending to their emotional and spiritual needs.  In Western society, the concept of hospice has been evolving in Europe since the 11th century.  Then, and for centuries thereafter in Roman Catholic tradition, hospices were places of hospitality for the sick, wounded, or dying, as well as those for travelers and pilgrims.  The modern concept of hospice includes palliative care for the incurably ill given in such institutions as hospitals or nursing homes, but also care provided to those who would rather spend their last months and days of life in their own homes.  The first modern hospice care was created by Cicely Saunders in 1967.

Keech Cottage: Keech Hospice Care is a hospice in Luton, England.  It provides care specifically for terminally ill children in Bedfordshire, Hertfordshire and Milton Keynes, but also focuses on older terminally ill patients in Luton and South Bedfordshire.  It has been commended for its work and has also seen notable fund raising events in the past.

Supporting paragraphs: Patrick Ness A Monster Calls
Answer: A Monster Calls