This adventure book cover features the entrance to a cave or tunnel with blue light coming out of it. At the bottom of the cover is a flashlight and a snake.
This science-fiction book cover features a man standing on top of a building or platform looking down at a large population of people. The whole cover is tinted blue.
This action book cover features a woman holding a large gun in the top half of the cover and a black car speeding through the streets in the bottom half of the cover.