Blotto, Twinks and the Riddle of the Sphinx: Blotto and Twinks, Book 5 (Unabridged‪)‬

The Dowager Duchess has decided to sell off the less important family possessions. Blotto and Twinks are dispatched to help the valuer. He spies some Egyptian artifacts and in some excitement rushes back to London, leaving Blotto and Twinks alone in the attic, where they are drawn to a sarchophagus decorated with hieroglyphs. Twinks starts to translate: "Anyone who desecrates this shrine will be visited by the Pharoah's curse...." - just as Blotto prises the lid off.

It's the brainy Twinks who decides the only thing to be done is to put the genie back in the bottle and so she, together with Blotto and their trusty chauffeur Corky Froggett, take the sarcophagus back to the Valley of the Kings.