The Sending is the sixth novel in the Obernewtyn Chronicles by Australian author Isobelle Carmody, and is the penultimate book in the series. It was originally intended to be the final book, but this was changed to allow Carmody to elaborate plot strands without it becoming too long. The book follows the journey of Elspeth as she is finally called to set out on her fated quest to destroy the computermachines before they unleash a second apocalypse. The book was published in Australia and the United States on 31 October 2011, and was released in the United Kingdom in July 2012.