El té de tornillo del profesor Zíper (Spanish Edition)

Lucio, Alex's older brother, has been missing for twelve years and there's no news about him. Until one day, an unknown old man visits Alex to inform him that his brother is trapped in the Island of the Immortal, where time doesn't go by. Alex decides to start a journey to rescue him, but he looks for Ziper, the only scientist capable of winning a competition against time. Will they find the correct antidote?