<p> In the last three months or so, I&#39;ve read every book of Larry Niven&#39;s (some in collaboration with Edward M. Lerner) that deals directly with the part of his &#34;Known Space&#34; universe that concerns itself with the Ringworld. So, in order, <em>Fleet of Worlds</em>, <em>Juggler of Worlds</em>, <em>Destroyer of Worlds</em>, <em>Betrayer of Worlds</em>, <em>Protector</em>, <em>Ringworld</em>, <em>The Ringworld Engineers</em>, <em>The Ringworld Throne</em>, <em>Ringworld&#39;s Children</em> and finally, the newly released <em>Fate of Worlds</em>.</p>