Soon lurid lights began to penetrate the vertical gallery which widened as we went up. Right and left I could see deep channels, like huge tunnels, out of which escaped dense volumes of smoke; tongues of fire lapped the walls, which crackled and sputtered under the intense heat.
No tardaron en penetrar en la galería vertical, que iba aumentando en anchura, reflejos amarillentos, a cuya luz distinguía a derecha a izquierda, profundos corredores que semejaban túneles imnensos de los que se escapaban espesos vapores, y largas lenguas de fuego lamían chisporroteando sus paredes.