This is an automatically translated description

Book 1: Made in the Abyss. Volume 1

There are not many unexplored corners in this world. It seems that everything has been discovered long ago. Not this one... the labyrinth of caves called the Abyss. A huge sinkhole, a vertical well full of treasures and unknown creatures. No one knows where the Abyss came from, no one can explain why it is exactly like that .

The orphan Riko also dreams of becoming one of them, because her mother was one. She still lacks skills, but the news from her mother, who is somewhere deep in the Abyss, motivates the girl to train fiercely. Otherwise, they will never see each other again...

So when Riko meets a strange robot at the edge of the abyss, extremely similar to a human, she realises that she is one step closer to achieving her goal.

Book 2. Made in the Abyss. Volume 2

No one returns from the lower levels of the Abyss. Not even the brave diving experts who explore this incredible abyss, the origin of which no one understands. Rico's mum can't get to the surface, and she barely manages to pass the news to her daughter. They have to meet. Rico has to come down.

The girl herself dreamed of becoming a diver, but it seemed so far away and almost unreal until she met Reg, a robot who looks so much like a human boy. Reg has incredible powers that he can't explain, and he wants to understand where they came from. Together they can descend into the Abyss and find Rico's mother, and maybe some answers.

As they begin to dive into the Abyss, they notice a shadow following them... what and who is waiting for them even deeper? Made in the Abyss. Volume 3

The Bottomless Abyss is fraught with curses, but people cannot resist the temptation to explore this precipice. How many have started their journey there... and how many have ever returned?"

For Riko and her new friend, Reg, the descent into the depths continues. Our heroes have to risk their lives trying to reach Rico's mother, who is on the lower levels and sent a message to the surface with a request. Fortunately, they now have an ally to help them scout the area.

With every step Rico and Reg learn more about the Abyss. Perhaps they have already seen more than they would like. After all, the lower you go, the darker it is, and the more ferocious creatures lurk in the corners. This is already the fourth level of the underworld, and there is still so much to discover. And they will see it, if they can avoid the deadly threat that lurks in wait...

But what is it? A man?