The Crypto-Capers in the Case of the Missing Sock by Renee Hand

In this story siblings Max and Mia Holmes, along with their good friend Morris and their flamboyant Granny Holmes, are know as The Crypto-Capers. They are a group of detectives who unravel crimes by solving cryptograms that criminals leave behind. Mia is an expert puzzle solver. Max is great at deduction and reasoning. Morris is [...]