Question: Who will direct the upcoming adaptation of the first of four novels in Philip Reeve's quartet of novels?

Context paragraphs:
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.

The Sleeping Beauty Quartet: The Sleeping Beauty Quartet is a series of four novels written by American author Anne Rice under the pseudonym of A. N. Roquelaure.  The quartet comprises "The Claiming of Sleeping Beauty", "Beauty's Punishment", "Beauty's Release", and "Beauty's Kingdom", first published individually in 1983, 1984, 1985, and 2015 in the United States.  They are erotic BDSM novels set in a medieval fantasy world, loosely based on the fairy tale of "Sleeping Beauty".  The novels describe explicit sexual adventures of the female protagonist Beauty and the male characters Alexi, Tristan and Laurent, featuring both maledom and femdom scenarios amid vivid imageries of bisexuality, homosexuality, ephebophilia and pony play.

Predator's Gold: Predator's Gold is the second of four novels in Philip Reeve's series for young adults, the "Mortal Engines Quartet".

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.

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.

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.

Library War: Library War (図書館戦争 , Toshokan Sensō ) is a Japanese light novel series by Hiro Arikawa, with illustrations by Sukumo Adabana.  There are four novels in the series, though only the first novel is called "Toshokan Sensō"; the subsequent novels are named "Toshokan Nairan", "Toshokan Kiki", and "Toshokan Kakumei".  The novels were published by MediaWorks between February 2006 and November 2007.  Two volumes of a spin-off series entitled "Bessatsu Toshokan Sensō" (別冊 図書館戦争 , lit.  "Supplement: Library War") have also been published by ASCII Media Works.  As of April 2008, the original four novels and volume one of the spin-off series have sold over 1.25 million copies in Japan.  The story was inspired from the "Statement on Intellectual Freedom in Libraries" of the Japan Library Association.

Christian Rivers: Christian Rivers is a New Zealand storyboard artist, visual effects supervisor, special effects technician and director.  He first met Peter Jackson as a 17-year-old, and storyboarded all of Jackson's films since "Braindead".  He also cameoed in "" as a Gondorian soldier and "King Kong" as a Soldier in Truck.  He will also direct the upcoming adaptation of "Mortal Engines" and the remake of "The Dam Busters", both produced by Peter Jackson.

Infernal Devices (Philip Reeve novel): Infernal Devices is the third of four novels in Philip Reeve's children's series, the "Mortal Engines Quartet".

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.

Supporting paragraphs: Christian Rivers Mortal Engines
Answer: Christian Rivers