The call comes in from the shadowy Ternky Tower: 13 robberies, one on each floor, all the way up to the penthouse, where obnoxious importer Bevel Ternky has been relieved of the legendary Emerald Chroniker, his priceless, ancient clock. Readers must conduct their own investigations, scouring detailed illustrations for hidden clues and knotty puzzles. All the answers can be found within these 13 floors: whodunit and how . . . and where they are now.
Twelve treasures sleep in the soil. The race is on!