Tessloff #Datendetektive. Band 4. Jagd nach Blackhack

The mysterious hacker Blackhack announces his wicked plans via drone: he wants to end the school festival in chaos. Shortly thereafter, the ball machines on the tennis court go haywire. Will the data detectives manage to uncover Blackhack's identity this time? Together, the data detectives Vicki, Lina, Laurin, Theo, and his dog Leo embark on a quest for clues. Luckily, they have a fantastic helper by their side in this new adventure: Brabbelbot, the funniest talking robot in the world. They can rely on him just as much as on Lina's karate skills, Laurin's research abilities, Theo's sense of direction, and Vicki, who explains everything about computers, robotics, and AI in an entertaining and easy-to-understand way with her encyclopedia.