This is book 12 of The Tania Series. Tania and Tanisha are at the garden digging up some mud to fill the pots for Tania's mother's tomato plants. Just as they finish digging up enough mud, they find something strange at the bottom of the hole. Out of curiosity, they dig further, and to their amazement, they find a red plastic box. What is in the box? Why was it buried? Who buried it there? Read on to find out.