14 歲的 Emily 原本只想待在家裡,等著心儀的 Toby 約她出去,這個暑假卻得跟媽媽的好友 Uncle Tom 一起整修房子。更糟的是,手機壞了、iPad 又留在爸爸家,沒有科技、好友與社交生活,她簡直不知道日子該怎麼過。直到 Emily 翻出媽媽年輕時的日記,才意外認識 1990 年代的少女 Lila MacKay。奇怪的流行服飾、陌生的電視節目與音樂,還有 Park Boy Tom 和鄰居 Weird Nicky,讓她愈讀愈投入。當媽媽不再只是「不懂自己的大人」,Emily 也逐漸發現,兩個不同年代的少女或許比想像中更相似。本書是 Why Mummy 系列暢銷作者首部為年輕 YA 讀者創作的小說,推薦給喜愛 Geek Girl 與 Lottie Brooks 的讀者。The No.1 bestselling author of the Why Mummy series’ debut novel for young YA readers!Fourteen-year-old Emily is gloomily spending the summer with her mum’s best friend Uncle Tom, helping him renovate his house, instead of being at home hoping the gorgeous Toby will ask her out. Worse, she’s broken her phone and left her iPad at her dad’s house. How is she supposed to survive without her tech, her BFF and her social life? No one understands her despair, least of all the boomers.Then she finds her mum’s old diary. MASSIVE CRINGE. But as Emily starts to read, she’s stunned to discover that her mum was once a teenager too. A nineties teenager called L