"You are Detective 021N, the main character in this story. You are seeking for important evidence. It is believed that it was lost when a mysterious package was thrown in a toilet...

You have to collect as much information as you can before evil Microcystis gets the mysterious package and use it's ingredients to become a Ruler of the Lake. What is there in the package? How to begin your investigation? It looks like an impossible mission...

If you want to solve the case successfully, you have to step into a new world – the world of wastewater treatment microorganisms! They are the only who can give you required information. You can approach them only by learning a lot about waste waters and ways of their treatment. You have to find out what wastewater contains, where it goes, what are the ways to remove waste substances, what problems could happen...

You have cartoon guides through the story. These characters are trying to help you, but also to confuse you. You have to decide whom you will trust. You are choosing the course of the story and deciding how it ends!"

 

"Authors apologize to all Microcystis species for using their name for the main "bad guy" of the story. Though cyanobacteria species are often participants of water "blooming", there are no "evil" species in the nature! Each organism have its role in biosphere, whatever we thing about it. Humans are those who, due their activities, cause disturbances, enabling some species to "go mad..."