Create a book cover for a thrilling adventure novel. The cover features Max in the foreground with his Quantum Armband glowing intensely, emitting bright and powerful energy beams. Max has an expression of determination and excitement on his face. His friends are positioned around him in dynamic and heroic poses, showcasing their readiness for action. The background combines elements of a futuristic cityscape and an adventurous natural landscape, creating a sense of mystery and excitement. No text. --cref <https://s.mj.run/IIqC-e9J23A>