The cheerful adventurer and IT specialist Denis was in a good mood from the very morning. Today he, together with Ray, the mutant-grandson of the legendary alien Golden Zandolie, were going to test a new model of the flying submarine! The first dive, the first flight, whatever!

Ray's interplanetary genius, together with the software support of Denis himself and with the experience of Scott, a former military pilot, sailor and Ray's adoptive father, – they all together had created a masterpiece!

Yes, the new submarine was designed to not only splendidly dive and maneuver under water, but also soar into the air! They managed to overcome the density difference between two types of the environment, water and air, brilliantly, with almost no loss!

Zina, Denis' wife and an IT specialist as well, had barely persuaded him to have a normal breakfast before leaving the house. He was too excited to eat.

“Den, of course, I am glad for all of you! You have a common cause! And you are not just killing time out of boredom, but learning new stuff from each other. But be careful. Ray has changed a lot. To be honest, he reminds me of Zandolie much more lately. He even started to squint and slouch like his grandfather. And those blue zigzags on Ray's body, almost like that blue alien! And Ray had started to wear a gold chain on his chest with the Star of David! It looks like we are living on the Island of Golden Zandolie again…”

“And you know what I think, Zin? You envy us! You do not take part in our projects and you are angry! Why don't you ever help us, or at least take look from aside?”

“Well, because deep in my