Create a book cover for a thrilling adventure novel. The cover features Max in the foreground, with his Quantum Armband glowing brightly, emitting powerful energy. Max has a determined and excited expression on his face. Surrounding him are his friends in heroic poses, ready for action. The background displays a futuristic cityscape merging with an adventurous landscape, adding a sense of excitement and mystery. No text. --cref <https://s.mj.run/IIqC-e9J23A>