Create a book cover for a thrilling adventure novel. The cover features Max in the foreground with his Quantum Armband glowing brilliantly, emitting dynamic and powerful energy. Max has a look of fierce determination and excitement on his face. Surrounding him, his friends are in action-oriented, heroic poses, each showcasing their unique abilities in an engaging manner without any weapons. The background blends a high-tech futuristic city with shimmering buildings and a mysterious, adventurous landscape filled with rugged mountains and dense forests, enhancing the sense of adventure and intrigue. No text. --cref <https://s.mj.run/IIqC-e9J23A>