Legend has it anyone who sees the Demon Cat of Capitol Hill will be cursed with bad luck 10yearold Fina Mendoza just saw it And the last thing her family needs right now is more bad luckFinas mom just died So she and her older sister Gabby just moved to Washington DC to live fulltime with Papa a congressman from California Fina loves riding the Capitol subways grabbing snacks in congressional offices and especially spending more time with Papa even though hes always on the phoneBut after Fina encounters a mysterious cat a string of disasters follows Jars of spaghetti sauce explode Her beloved Abuelita breaks her leg And Finas only friend in Washington a congressional dog named Senator Something becomes the targetThe only way for Fina to save her family from future catastrophe is to solve the mystery of the Demon Cat of Capitol Hill