'Cassandra Beckett, you have been summoned by the Bell of Truth to answer to the Guardians of the Trumpiad... You are accused of breaking the law of the Trumpiad. You have threatened the future and caused havoc with time.'
 
In this sequel to Riddle of the Trumpalr the twins, Cass and Carl, again enter the mysterious world of the Trumpalar. They visit the past to clear the name of Mary, a convict girl accused of murdering the Governer's godchild. They visit the future and must reclaim the huge morning glory seeds which will ruin the future.