The cupola, constructed of a hard but lightweight volcanic stone which seemed still to share in the upward movement of flames, revealed the sky through a great hole at the center, showing alternately dark and blue.
Ganga edo koltza, oraindik sugarren gorako mugimenduaren partaide zela zirudièn laba gogor eta arin batez egina, estali gabe ageri zen zeruaren azpian, zulo handi bat zela medio, zeina beltz edo urdin egon ohi zen, aldikal, gaua ala eguna izan-ahala.