Survivors is a novel series written by a team of authors under the pseudonym Erin Hunter. Survivors follows the adventures of a group of former domestic dogs who form a pack with the help of protagonist Lucky, after an earthquake separates them from their owners. The first book, The Empty City, was released on 21 August 2012, and was followed by eleven more books written between 2013 and 2019. There are two sub-series, each containing six books. The first, Survivors: The Original Series, was published from 2012 to 2015. The second, Survivors: The Gathering Darkness, was written from 2015 to 2019. The Survivors series has been released in e-book format for popular e-readers such as the Barnes & Noble Nook and Amazon Kindle. The series has also been translated into several languages. Survivors has garnered positive reviews, with critics praising the pacing, characters, and "magical" style of writing. Source: Wikipedia (en)