In book 4, Oona Lee arrives on Salassandra determined to light the yellow beacon and continue her quest to save the Five Worlds from the evil Mimic's influence. But the beacon is encased in amber! An ancient clue says that Oona and her friends must seek out the Amber Anthem to succeed. Meanwhile, Stan Moon sends an evil Jax robot to assassinate Oona and hunts down An Tzu himself. Turns out, as An Tzu fades away from his Vanishing Illness, he's becoming someone else--someone who could tip the scales in the battle for the Five Worlds!


在第四集裡，李烏娜抵達薩拉桑卓，決心要點燃黃色烽火台，設法從邪惡的模仿者手裡拯救五個世界。可是烽火台被琥珀包裹著，根據古老的線索指示，烏娜和她的朋友們必須找到琥珀頌歌才能成功破解。同時，斯坦•慕恩親自追捕安祖，並派出邪惡的賈克斯機器人來暗殺烏娜。原來隨著安祖逐漸從隱身病中消失，他正變成另外一個人，這個人可能在五個世界的戰役中改變局勢！


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Found in Children’s Middle Grade Action & Adventure Books

The 5 Worlds series: #1: The Sand Warrior, #2: The Cobalt Prince, #3: The Red Maze, #4: The Amber Anthem, #5: The Emerald Gate