In DC Comics, there are a significant number of different lanterns. They range from the classic Green Lantern to less common ones like Orange Lantern. The count changes as new stories and characters are introduced.
Well, in the DC Comics universe, you'll find a bunch of lantern types such as Green Lantern, which is the most well-known, along with Yellow Lantern, Blue Lantern, Red Lantern, and a few more. The count can change based on the latest comic developments and creative directions.
Well, it's not a straightforward yes. Some DC movies are direct adaptations of comic stories, but others take elements from multiple comics or even deviate significantly to offer a fresh take on the DC universe.
I'm sorry, I don't know who the author of the 'Red Lanterns Novel' is as there isn't enough information provided. There could be many relatively unknown or new authors with a work named like this.