The novel Departure is the first standalone novel written by the American writer A.G. Riddle.
The novel follows the trilogy The Atlantis Gene written a few years before the novel Departure. Just like in the series Atlantis, the novel Departure is a sci-fi novel who takes place both in the present and in the future. The main characters are transported into the future where they have to face a world completely different from what they knew in their timeline. The characters are then put in the position to take crucial decisions.
The novel follows its main characters as they try to decide whether it is wrong or right to sacrifice a few for the greater good and also experiences the lengths to which a person is willing to go for love and what sacrifices they are willing to make just to be with the person they love.
The novel was well received by the general public in 2015 when it was first published and then it was announced that the novel will be adapted into a film.