Karline can't believe it: Her patchwork brother Paul hits her class like a bio-bomb: stealthily but sustainably. He gets elected class representative! Meanwhile, she had the much better campaign program. But revenge is sweet, and above all, Paul has no idea about Karline's greatest trump card: she knows where he hides his diary – sorry Paul, "logbook" – and secretly reads along. A comic novel from two perspectives – brother-annoying and sister-funny! The most unsecret diaries in the world: Volume 1: How my silly brother became class representative in my class. Volume 2: How my embarrassing brother invited himself to my party.