内容简介
Inthetwenty-thirdcenturypioneershaveescapedthecrowdedearthforlifeinself-sustainingorbitalcolonies.Oneofthecolonies,Rotor,hasbrokenawayfromthesolarsystemtocreateitsownrenegadeutopiaaroundanunknownredstartwolight-yearsfromEarth:astarnamedNemesis.Nowafifteen-year-oldRotoriangirlhaslearnedofthedirethreatthatnemesisposestoEarth'speople--butsheispreventedfromwarningthem.SoonshewillrealizethatNemesisendangersRotoraswell.AndsoitwillbeuptoheralonetosavebothEarthandRotoras--drawninexorablybyNemesis,thedeathstar--theyhurtletowardcertaindisaster.