Сильмариллион
Of the Voyage of Earendil and the War of Wrath
Butaftermanyyears,whenwellnighathirdofthatageoftheworldhadpassed,adarknesscreptslowlythroughthewoodfromthesouthward,andfearwalkedthereinshadowyglades;fellbeastscamehunting,andcruelandevilcreatureslaidtheretheirsnares.
ThenthenameoftheforestwaschangedandMirkwooditwascalled,forthenightshadelaydeepthere,andfewdaredtopassthrough,saveonlyinthenorthwhereThranduil’speoplestillheldtheevilatbay.Whenceitcamefewcouldtell,anditwaslongereeventheWisecoulddiscoverit.ItwastheShadowofSauronandthesignofhisreturn.
ForcomingoutofthewastesoftheEasthetookuphisabodeinthesouthoftheforest,andslowlyhegrewandtookshapethereagain;inadarkhillhemadehisdwellingandwroughttherehissorcery,andallfolkfearedtheSorcererofDolGuldur,andyettheyknewnotatfirsthowgreatwastheirperil.
EvenasthefirstshadowswerefeltinMirkwoodthereappearedinthewestofMiddle-earththeIstari,whomMencalledtheWizards.Noneknewatthattimewhencetheywere,saveCirdanoftheHavens,andonlytoElrondandtoGaladrieldidherevealthattheycameovertheSea.ButafterwardsitwassaidamongtheElvesthattheyweremessengerssentbytheLordsoftheWesttocontestthepowerofSauron,ifheshouldariseagain,andtomoveElvesandMenandalllivingthingsofgoodwilltovaliantdeeds.