Die Cityflitzer jagen den Computerhacker

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Nina can hardly believe it: suddenly her biology grades are mysteriously altered, and she is invited to a summer course for gifted students. Something must be amiss! Anton, the computer enthusiast of the Cityflitzer, suspects that a hacker has secretly infiltrated the school’s computer system and manipulated the grades. An exciting chase begins, both online and on inline skates. Soon, the Cityflitzer are hot on the trail of the mysterious hacker. This thrilling and humorous adventure features the Cityflitzer as computer detectives, blending technology with excitement as they unravel the mystery behind the grade tampering.