When Cleo and Evan go undercover to help a rookie detective interview a mansion full of suspects, nothing is as it seems. They must catch the crook -- and find the right key -- or they could be trapped inside this mystery forever...
Agents Cleo and Evan have been given an impossible mission: become super-spies and foil the plans of an evil mastermind. But it won't be easy to break into the Viper's secret underwater lair, complete a daring rescue, find the right key, and get out alive!
On a dark and stormy night, Cleo and Evan are haunted by a disaster. Evan has been bitten by a werewolf! If they can't find the cure -- and the right key -- before the full moon rises, he'll be stuck prowling the pages of this ghost story for good!
The quest is clear. To save the kingdom, Cleo and Evan must battle clever elves, horrible trolls, and the mighty Golden Dragon. Magic will help them win the war--and find the right key. But it will take more than swords and spells to survive this epic fantasy!
A plane crash in the Amazon lands Cleo and Evan on the hunt for a valuable golden statue. They must find it -- and their next key -- to make it home alive. But the jungle is full of deadly creatures, raging rapids, and an all-too-familiar villain who wants nothing more than to trap them forever!
When Cleo and Evan set sail on the Titanic, time is not on their side! The famous ocean liner is destined to hit an iceberg. If they can stop a thief from stealing a priceless jeweled book -- and find their next key -- they might avoid sinking with the ship in this historic disaster!
書本格式：Paperback 平裝版 / 單色印刷
書本尺寸：13.4 x 19.4 cm