This is Larry Niven's Mastered Space. The history of the distant future, written down to the smallest detail. The history of distant planets inhabited by billions of earthlings and representatives of the most incredible alien races - kzin and puppeteers, kdatlinos and trinoks. However, the true “pearl” of Mastered Space is the Ring World. The most unique artifact in the entire history of world SF - and, according to Larry Niven, “the most amazing work of engineering art since Dante’s Divine Comedy.” Artificially created around a distant sun “ hoop" - tens of meters thick, millions of kilometers wide and a billion in diameter. “Hoop”, the inside of which can accommodate trillions of inhabitants. “The Hoop”, which again and again becomes an “arena” for wars, expansions and incredible, exciting adventures. Welcome to Larry Niven’s Mastered Space!