There are now four of these magnificent books for the little investigators at home!

They'll love this extravagant and colorful universe that needs to be examined closely.

After mysteries in different settings, even throughout history, it's time to search on public transportation! Zeppelins, airplanes, the port, a cruise ship! On the subway and in the parking lot… There's no quiet place; everywhere there's something to investigate!

To solve these 16 brilliant investigations, read the stories and look for the characters in the different plots in the pictures: you'll see, some are very well hidden.