To create a 3D book cover for "Silk Wars 2" by Regan Wolff featuring a knight in a black cloak wearing a white mask, set against a gray-black background, follow these steps in the 3D Book Cover Generator:

1. Select a Template: Choose a 3D book cover template that allows for character placement and background customization.
2. Customize Background: Set the background color to a gradient or solid gray-black to create a dramatic effect.
3. Add Character: Upload or select an image of a knight in a black cloak. Ensure the knight is positioned prominently on the cover.
4. Mask Design: If possible, customize the knight's mask to be white with protrusions at the top, ensuring it stands out against the cloak.
5. Title Placement: Add the title "Silk Wars 2" in a bold, readable font. Position it at the top or center of the cover for visibility.
6. Author Name: Include "Regan Wolff" at the bottom of the cover in a complementary font style.
7. Preview and Adjust: Use the preview feature to see how the elements come together and make any necessary adjustments.
8. Export: Once satisfied with the design, export the cover in your desired file format (e.g., JPEG, PNG, PDF).

This process will help you create a visually striking 3D book cover that captures the essence of your book.