十二歲的 Aku 是個愛做白日夢的太空迷。在學校常感到不安、甚至遭遇霸凌的他，最自在的地方是天文館。當外婆過世，留給他一頂太空人頭盔時，「本書」的冒險就此展開——這頂頭盔竟能帶他穿越元宇宙，往返地球與神祕星球 Ibra。在那裡沒有霸凌，他可以成為最真實的自己，還結識了外星朋友。然而，穿越也撕開宇宙裂縫，引來士兵入侵，奪走珍貴的 lunaberry。若 Aku 無法補救，整個星球將陷入危機。作者 Micah Johnson 以自身創造的 3D 角色 Aku 為原點，展開系列起始篇。Aku 曾登上《TIME》雜誌封面，成為文化現象。《Kirkus》與《School Library Journal》皆肯定其節奏明快、兼具真實成長議題與科幻張力。這是一則關於勇氣與想像的起飛故事。When 12-year-old daydreamer Aku inherits an astronaut helmet from his dead grandmother, he gains the power to transport himself throughout the metaverse. Now, he has no choice but to become the space hero he always wanted to be. Aku loves space. He loves playing space-themed role-playing games with his best friends, Benji and Trae, and he dreams of becoming an astronaut. Otherwise insecure--especially at school, where he's bullied--Aku is most comfortable at the local planetarium. So, when his grandmother dies and leaves him an astronaut helmet, Aku thinks it's the coolest thing ever. ...scratch that... Discovering that the helmet can transport him thr
