By dedicating a few hours to sit back, close your eyes, and listen to Momo's journey, you are doing exactly what the Men in Grey fear most: enjoying your time, exactly as it was meant to be spent.

This peaceful world is shattered by the arrival of the sinister "Men in Grey." These parasitic figures convince the townspeople to "save time" by depositing it in a phantom Timesavings Bank, promising it will be returned with interest. The result is a society obsessed with efficiency, where people rush through joyless lives, abandoning their passions and friendships in a frantic effort to save every second. Only Momo can see through the lies of the grey men. With the help of the mysterious Professor Hora and his remarkable tortoise, Cassiopeia, she must travel beyond the boundaries of time to confront the thieves and return what was stolen.

While the entire book is a masterpiece, several sequences are particularly breathtaking when experienced through audio: