Question: What prize was won for a book by a British author and illustrator from Dartmoor, focusing on futuristic steampunk London?

full_context: Document 1: Fever Crumb: Fever Crumb is a young adult post-apocalyptic science fiction novel by Philip Reeve, published in 2009. Sequels called "A Web of Air" (2010) and "Scrivener's Moon" (2011) follow. The books of the Fever Crumb Series are prequels to the Mortal Engines Quartet series of novels by the same author.
Document 2: Traction City (novella): Traction City is a novella by Philip Reeve and is a prequel to the Mortal Engines Quartet it was released as a flip book alongside Chris Priestlys' teachers tales of terror for World Book Day.
Document 3: Mortal Engines: Mortal Engines is the first of four novels in Philip Reeve's quartet of the same name. The book focuses on a futuristic, steampunk version of London, now a giant machine striving to survive on a world running out of resources. The book has won a Nestlé Smarties Book Prize and was shortlisted for the 2002 Whitbread Award.
Document 4: Larklight: Larklight, or the Revenge of the White Spiders! or to Saturn's Rings and Back! is a young adult novel by author Philip Reeve. Illustrated by David Wyatt, it is the first book in the Larklight Trilogy.
Document 5: Mothstorm: Mothstorm, or the Horror from Beyond Uranus Georgium Sidus! or a Tale of Two Shapers is a young adult novel by Philip Reeve, released in October 2008. Illustrated by David Wyatt, it is the third book in the Larklight Trilogy, sequel to the 2007 novel "Starcross".
Document 6: Philip Reeve: Philip Reeve (born 28 February 1966) is a British author and illustrator of children's books. He currently lives on Dartmoor with his wife Sarah and their son Sam.
Document 7: Railsea: Railsea is a young adult novel written and illustrated by English writer China Miéville, and published in May 2012. Miéville described the novel as "weird fiction", "io9" labelled its mix of fantasy and steampunk elements as "salvagepunk" and the story has been seen as an "affectionate parody" of Herman Melville's classic novel "Moby-Dick", also drawing on Robert Louis Stevenson's adventure novels "Treasure Island" and "Kidnapped".
Document 8: Mortal Engines (film): Mortal Engines is an upcoming New Zealand-American science fiction action adventure film directed by Christian Rivers and written by Peter Jackson, Fran Walsh, and Philippa Boyens. It is based on the novel of the same name by Philip Reeve. It stars Robert Sheehan, Hera Hilmar, Hugo Weaving, Jihae, Leila George, Ronan Raftery, and Stephen Lang. It is set to be released in theaters on December 14, 2018.
Document 9: A Darkling Plain: A Darkling Plain is the fourth and final novel in the "Mortal Engines Quartet" series written by author Philip Reeve.
Document 10: Mortal Engines Quartet: The Mortal Engines Quartet is a tetralogy consisting of four novels written by the British author Philip Reeve: "Mortal Engines" (2001), "Predator's Gold" (2003), "Infernal Devices" (2005), and "A Darkling Plain" (2006). It has also been referred to as the Predator Cities Quartet or the Hungry City Chronicles, although the author has objected to those names.
Document 11: Philip Pullman: Philip Pullman CBE, FRSL (born 19 October 1946) is an English novelist. He is the author of several best-selling books, most notably the fantasy trilogy "His Dark Materials" and the fictionalised biography of Jesus, "The Good Man Jesus and the Scoundrel Christ". In 2008, "The Times" named Pullman one of the "50 greatest British writers since 1945". In a 2004 poll for the BBC, Pullman was named the eleventh most influential person in British culture.
Document 12: A Web of Air: A Web of Air is a young adult post-apocalyptic science fiction novel by Philip Reeve. The sequel to "Fever Crumb", it is the second book in the Mortal Engines Quartet prequel series. It was published in April 2010.
Document 13: Infernal Devices (Philip Reeve novel): Infernal Devices is the third of four novels in Philip Reeve's children's series, the "Mortal Engines Quartet".
Document 14: Predator's Gold: Predator's Gold is the second of four novels in Philip Reeve's series for young adults, the "Mortal Engines Quartet".
Document 15: Fever Crumb Series: The Fever Crumb Series is the title of a series of novels written by British author, Philip Reeve, and is the prequel series to his critically acclaimed "Mortal Engines Quartet". As of 2015 the series consists of three books: "Fever Crumb" (2009), "A Web of Air" (2010), and "Scrivener's Moon" (2011). The books follow a young woman known as Fever Crumb, and her adventures set around the time of the creation of the first traction cities that become so prevalent in the Mortal Engines series. Reeve stated in 2011 that he had always envisaged a quartet for the series, assuring readers of a fourth installment.
ground_truth: Nestlé Smarties Book Prize