“ThatismorethanIknorofessor，“andachargeoflyingagainstsomeonewhomyouhavealwaysfoundtruthfulisaveryseriousthing;averyseriousthingindeed。”
“Wewereafraiditmightn'tevenbelying，”saidSusatheremightbesomethingwrongwithLucy。”
“Madness，youmean?”saidtheProfessorquitecoolly。“Oh，youmakeyourmithat。Onehasonlytolookatherandtalktohertoseethatsheisnotmad。”
“Butthen，”saidSusan，andstopped。Shehadagrown-upwouldtalkliketheProfessoranddidn'tknowwhattothink。
“Logic!”saidtheProfessorhalftohimself。“Whydon'ttheyteachlogicattheseschools?Thereareonlythreepossibilities。Eitheryoursisteristellinglies，orsheismad，orsheistellih。Youknowshedoesn'ttellliesanditisobviousthatsheisnotmadForthemomentthenandunlessanyfurtherevideurassumethatsheistellih。”
Susahimveryhardandwasquitesurefromtheexpressionohewasnotmakingfunofthem。
“Buthowcoulditbetrue，sir?”saidPeter。
“Whydoyousaythat?”askedtheProfessor。
“Well，forohing，”saidPeter，“ifitwasrealwhydoesn'teveryohistryeverytimetheygotothewardrobe?Imeahingtherewhenwelooked;evenLu'tpretendthere>
“Whathasthattodowithit?”saidtheProfessor。
“Well，sir，ifthihey'rethereallthetime。”
&hey?”saidtheProfessor;akosay。
“Buttherewasnotime，”saidSusan。“Lucyhadhadohavegoneaherelace。Sheiheverymomeheroom。Itwaslessthanminute，aohavebeenawayforhours。”
“Thatistheverythingthatmakesherstorysolikelytobetrue，”saidtheProfessor。“Iftherereallyisadoorinthishousethatleadstosomeotherworld（andIshouldwarnyouthatthisisaverystrangehouse，andevenIkleaboutit）—if，Isay，shehadgotintoanotherworld，Ishouldallsurprisedtofindthattheotheraratetimeofitsown;sothathyoustayedthereitwouldakeupanyofourtime。Oherhand，Idon'tthinkmanygirlsewouldiideaforthemselves。Ifshehadbeeending，shewouldhavehiddenforareasoimebefoutandtelliory。”
“Butdoyoureallymean，sir，”saidPeter，“thattherecouldbeotherworlds—allovertheplace，justroundtheer—likethat?”
“Nothingismoreprobable，”saidtheProffhisspedbeginningtopolishthem，whilehemutteredtohimself，“Iwoheydoteachthemattheseschools。”
“Butwhatarewetodo?”saidSusaheversatioogetoffthepoint。
“Mydearyounglady，”saidtheProfessor，suddenlylookingupwithaverysharpexpressionatbothofthem，“thereisoneplanwhiehasyetsuggestedand。”
“What'sthat?”saidSusan。
&alltrymindingourownbusiness，”saidhe。Andthatwastheendofthatversation。
&hingswereagooddealbetterforLucy。PetersawtoitthatEdmundstather，ahershenoraialkaboutthewardrobeatall。Ithadbeearatheralarmi。Andsoforatimeitlookedasifalltheadventureswereihatwasnottobe。
ThishouseoftheProfessor's—whihekleabout—wassooldandfamousthatpeoplefromalllaoeandaskpermissio。Itwasthesortofhousethatismentionedinguidebooksaories;amightbe，forallmaoriesweretoldaboutit，someofthemeveheoellingyounoartiesofsightseersarrivedaoseethehouse，thePravethempermission，andMrs。Macready，thehousekeeper，showedthemrouhemaboutthepidthearmor，andtherarebooksinthelibrary。Mrs。Macreadywasnotfondof，anddidobeiedwheellingvisitorsallthethingssheknew。ShehadsaidtoSusaom（alongwithagoodmarus），“Andpleaserememberyou'retokeepoutofthewaywheneverI'mtakingapartyoverthehouse。”
“Justasifanyofusastehalfthemroundwithacrrown-ups!”saidEdmund，ahreethoughtthesame。Thatwashowtheadvehesee。
AfewmslaterPeterandEdmundwerelookiofarmoraheycouldtakeittobitswhewogirlsrushedintotheroomandsaid，“Lookout!Hereadawholegangwithher。”
“Sharp'stheeter，andallfourmadehthedooratthefarendoftheroom。ButwheoutintotheGreenRooma，intotheLibrary，theysuddenlyheardvoicesaheadofthem，aMrs。Macreadymustbebriyofsightseersupthebackstairs—insteadofupthefrontstairsastheyhadexpedafterthat—whetheritwasthattheylosttheirheads，orthatMrs。Macreadywastryingtocatchthem，orthatsomemagithehousehadetolifeandwasgthemintoNarnia—theyseemedtofindthemselvesbeingfollowedeverywhere，untilatlastSusansaid，“Ohbotherthosetrippers!Here—let'sgetintotheWardrobeRoomtillthey'vepassed。Noonewillfollowusihemomenttheywereiheyheardvoithepassage—andthensomeonefumblingatthedoor—aheysawthehaurning。
“Quick!”saidPeter，“there'snowhereelse，”andfluhewardrobe。Allfourofthembundlediaing，inthedark。Peterheldthedoorclosedbutdidnotshutit;for，ofcourse，heremembered，aseverysensiblepersoyoushouldyourselfupinawardrobe。