TROUBLE IN MONARTO - REVENANCE: Unfinished Business In the first book, Trouble In Monarto, arch villain Cassandra was able to escape justice. This fact had long annoyed Alex Jaeger and friends, who had foiled Cassandra's evil design, but there now appears a second chance to settle the score when Spinoza's niece comes to Alex, now working as a private detective, with a threatening note which had been slipped under her hotel room...