The themes include mystery and the exploration of the unknown. In 'Eyes of Darkness', the characters are constantly faced with strange and unexplained events that they need to figure out. Also, survival is a key theme. The characters are in dangerous situations and have to fight to stay alive against various threats, whether they are human or supernatural.
One of the main themes is the battle between good and evil. The story often pits the characters against malevolent forces. Another theme could be the power of a mother's love, as the main character is a mother who has to face many challenges to protect her child. There's also an element of the unknown and the supernatural, which adds to the overall sense of mystery and suspense in the story.
Good vs. evil is a prominent theme. The evil in the story takes on different forms, testing the characters' moral and physical strength. Additionally, the theme of self - discovery is present. As the story unfolds, the characters learn more about themselves, their capabilities, and their pasts, which all contribute to their development and how they deal with the challenges in the story.