The Quivering Quavers: the Cryptic Casebook of Coco Carlomagno (And Alberta) Bk 5 - Cryptic Casebook of Coco Carlomagno (And Alberta)

Coco Carlomagno is trying to avert a national disaster. La Bella Cucharita, world-famous opera singer, is due to make her return to the stage - but a strange message has her rattled. Luckily Coco is on the case, and with a little help from his logic-loving cousin Alberta, he can discover just who is behind the quivering quavers...