And to get an answer to this question, the idea occurred to him to examine the trunk of the sequoia from the out side. When he had done so, he understood what had happened during the storm. The track of the lightning was visible on the tree, which had had a long strip of its bark torn off from the fork down to the roots. Had the electric spark found its way into the interior of the sequoia in place of keeping to the outside, Godfrey and his companion would have been struck. Most decidedly they had had a narrow escape. "It is not a good thing to take refuge under trees during a storm," said Godfrey. "That is all very well for people who can do otherwise. But what way have we to avoid the danger who live inside the tree? We must see!" Then examining the sequoia from the point where the long lightning trace began--"It is evident," said he, "that where the flash struck the tree has been cracked. But since the air penetrates by this orifice the tree must be hollow along its whole length and only lives in its bark? Now that is what I ought to see about!" And Godfrey went to look for a resinous piece of wood that might do for a torch. A bundle of pine twigs furnished him with the torch he needed, as from them exuded a resin which, once inflamed, gave forth a brilliant light. Godfrey then entered the cavity which served him for his house. To darkness immediately succeeded light, and it was easy to see the state of the interior of Will Tree. A sort of vault of irregular formation stretched across in a ceiling some fifteen feet above the ground. Lifting his torch Godfrey distinctly saw that into this there opened a narrow passage whose further development was lost in the shadow. The tree was evidently hollow throughout its length; but perhaps some portion of the alburnum still remained intact. In that case, by the help of the protuberances it would be possible if not easy to get up to the fork. Godfrey, who was thinking of the future, resolved to know without delay if this were so. He had two ends in view; one, to securely close the opening by which the rain and wind found admission, and so render Will Tree almost habitable; the other, to see if in case of danger, or an attack from animals or savages, the upper branches of the tree would not afford a convenient refuge. He could but try. If he encountered any insurmountable obstacle in the narrow passage, Godfrey could be got down again. After firmly sticking his torch between two of the roots below, behold him then commencing to raise himself on to the first interior knots of the bark. He was lithe, strong, and accustomed to gymnastics like all young Americans. It was only sport to him. Soon he had reached in this uneven tube a part much narrower, in which, with the aid of his back and knees, he could work his way upwards like a chimney-sweep. All he feared was that the hole would not continue large enough for him to get up.