Nextday,Tuesday,June30,at6a.m.,thedescentbeganagain. Wewerestillfollowingthegalleryoflava,arealnaturalstaircase,andasgentlyslopingasthoseinclinedplaneswhichinsomeoldhousesarestillfoundinsteadofflightsofsteps. Andsowewentonuntil12.17,the,precisemomentwhenweovertookHans,whohadstopped. "Ah!hereweare,"exclaimedmyuncle,"attheveryendofthechimney." Ilookedaroundme.Wewerestandingattheintersectionoftworoads,bothdarkandnarrow.Whichwerewetotake?Thiswasadifficulty. Stillmyunclerefusedtoadmitanappearanceofhesitation,eitherbeforemeortheguide;hepointedouttheEasterntunnel,andweweresoonallthreeinit. Besidestherewouldhavebeeninterminablehesitationbeforethischoiceofroads;forsincetherewasnoindicationwhatevertoguideourchoice,wewereobligedtotrusttochance. Theslopeofthisgallerywasscarcelyperceptible,anditssectionsveryunequal. Sometimeswepassedaseriesofarchessucceedingeachotherlikethemajesticarcadesofagothiccathedral. Herethearchitectsofthemiddleagesmighthavefoundstudiesforeveryformofthesacredartwhichsprangfromthedevelopmentofthepointedarch. Amilefartherwehadtoboworheadsundercornicedellipticarchesintheromanesquestyle;andmassivepillarsstandingoutfromthewallbentunderthespringofthevaultthatrestedheavilyuponthem. Inotherplacesthismagnificencegavewaytonarrowchannelsbetweenlowstructureswhichlookedlikebeaver'shuts,andwehadtocreepalongthroughextremelynarrowpassages. Theheatwasperfectlybearable.InvoluntarilyIbegantothinkofitsheatwhenthelavathrownoutbySnaefellwasboilingandworkingthroughthisnowsilentroad. Iimaginedthetorrentsoffirehurledbackateveryangleinthegallery,andtheaccumulationofintenselyheatedvapoursinthemidstofthisconfinedchannel. Ionlyhope,thoughtI,thatthisso–calledextinctvolcanowon'ttakeafancyinhisoldagetobeginhissportsagain! IabstainedfromcommunicatingthesefearstoProfessorLiedenbrock. Hewouldneverhaveunderstoodthematall.Hehadbutoneidea–forward! Hewalked,heslid,hescrambled,hetumbled,withapersistencywhichonecouldnotbutadmire. Bysixintheevening,afteranotveryfatiguingwalk,wehadgonetwoleaguessouth,butscarcelyaquarterofamiledown. Myunclesaiditwastimetogotosleep.Weatewithouttalking,andwenttosleepwithoutreflection. Ourarrangementsforthenightwereverysimple;arailwayrugeach,intowhichwerolledourselves,wasoursolecovering. Wehadneithercoldnorintrusivevisitstofear. TravellerswhopenetrateintothewildsofcentralAfrica,andintothepathlessforestsoftheNewWorld,areobligedtowatchovereachotherbynight. Butweenjoyedabsolutesafetyandutterseclusion;nosavagesorwildbeastsinfestedthesesilentdepths. Nextmorning,weawokefreshandingoodspirits.Theroadwasresumed. Asthedaybefore,wefollowedthepathofthelava. Itwasimpossibletotellwhatrockswewerepassing:thetunnel,insteadoftendinglower,approachedmoreandmorenearlytoahorizontaldirection,Ievenfanciedaslightrise. Butabouttenthisupwardtendencybecamesoevident,andthereforesofatiguing,thatIwasobligedtoslackenmypace. "Well,Axel?"demandedtheProfessorimpatiently. "Well,Icannotstanditanylonger,"Ireplied. "What!afterthreehours'walkoversucheasyground." "Itmaybeeasy,butitistiringallthesame." "What,whenwehavenothingtodobutkeepgoingdown!" "Goingup!"saidmyuncle,withashrug. "Nodoubt,forthelasthalf–hourtheinclineshavegonetheotherway,andatthisrateweshallsoonarriveuponthelevelsoilofIceland." TheProfessornoddedslowlyanduneasilylikeamanthatdeclinestobeconvinced.Itriedtoresumetheconversation. Heanswerednotaword,andgavethesignalforastart. Isawthathissilencewasnothingbutill–humour. StillIhadcourageouslyshoulderedmyburdenagain,andwasrapidlyfollowingHans,whommyunclepreceded.Iwasanxiousnottobeleftbehind. Mygreatestcarewasnottolosesightofmycompanions. Ishudderedatthethoughtofbeinglostinthemazesofthisvastsubterraneanlabyrinth. Besides,iftheascendingroaddidbecomesteeper,Iwascomfortedwiththethoughtthatitwasbringingusnearertothesurface.Therewashopeinthis. Everystepconfirmedmeinit,andIwasrejoicingatthethoughtofmeetingmylittleGräubenagain. Bymiddaytherewasachangeintheappearanceofthiswallofthegallery. Inoticeditbyadiminutionoftheamountoflightreflectedfromthesides;solidrockwasappearingintheplaceofthelavacoating. Themasswascomposedofinclinedandsometimesverticalstrata. Wewerepassingthroughrocksofthetransitionorsilurian[l]system. "Itisevident,"Icried,"themarinedepositsformedinthesecondperiod,theseshales,limestones,andsandstones. Weareturningawayfromtheprimarygranite. WearejustasifwewerepeopleofHamburggoingtoLubeckbywayofHanover!" Ihadbetterhavekeptmyobservationstomyself.Butmygeologicalinstinctwasstrongerthanmyprudence,anduncleLiedenbrockheardmyexclamation. "What'sthatyouaresaying?"heasked. "See,"Isaid,pointingtothevariedseriesofsandstonesandlimestones,andthefirstindicationofslate. "Weareattheperiodwhenthefirstplantsandanimalsappeared." IobligedtheProfessortomovehislampoverthewallsofthegallery.Iexpectedsomesignsofastonishment;buthespokenotaword,andwenton. Hadheunderstoodmeornot?Didherefusetoadmit,outofself–loveasanuncleandaphilosopher,thathehadmistakenhiswaywhenhechosetheeasterntunnel? orwashedeterminedtoexaminethispassagetoitsfarthestextremity? Itwasevidentthatwehadleftthelavapath,andthatthisroadcouldnotpossiblyleadtotheextinctfurnaceofSnaefell. YetIaskedmyselfifIwasnotdependingtoomuchonthischangeintherock.MightInotmyselfbemistaken?Werewereallycrossingthelayersofrockwhichoverliethegranitefoundation? [1]ThenamegivenbySirRoderickMurchisontoavastseriesoffossiliferousstrata,whichliesbetweenthenon–fossiliferousslatyschistsbelowandtheoldredsandstoneabove. ThesystemiswelldevelopedintheregionofShropshire,etc.,onceinhabitedbytheSiluresunderCaractacus,orCaradoc.(Tr.) IfIamright,Ithought,Imustsoonfindsomefossilremainsofprimitivelife;andthenwemustyieldtoevidence.Iwilllook. Ihadnotgoneahundredpacesbeforeincontestableproofspresentedthemselves. Itcouldnotbeotherwise,forintheSilurianagetheseascontainedatleastfifteenhundredvegetableandanimalspecies. Myfeet,whichhadbecomeaccustomedtotheinduratedlavafloor,suddenlyresteduponadustcomposedofthedebrisofplantsandshells. Inthewallsweredistinctimpressionsoffucoidsandlycopodites. ProfessorLiedenbrockcouldnotbemistaken,Ithought,andyethepushedon,with,Isuppose,hiseyesresolutelyshut. Thiswasonlyinvincibleobstinacy.Icouldholdoutnolonger.Ipickedupaperfectlyformedshell,whichhadbelongedtoananimalnotunlikethewoodlouse:then,joiningmyuncle,Isaid: "Verywell,"saidhequietly,"itistheshellofacrustacean,ofanextinctspeciescalledatrilobite.Nothingmore." "Justwhatyouconcludeyourself.Yes;Ido,perfectly.Wehaveleftthegraniteandthelava.ItispossiblethatImaybemistaken. ButIcannotbesureofthatuntilIhavereachedtheveryendofthisgallery." "Youarerightindoingthis,myuncle,andIshouldquiteapproveofyourdetermination,iftherewerenotadangerthreateningusnearerandnearer." "Well,Axel,wewillputourselvesuponrations."