Jack was not stunned for the Goutlet which was previously mentioned to him as dayer portable furnace, he was stunned for that how can this old man knows what's in his heart. Although Jack was little angry in his heart that this old man still playing dumb game with him, not telling the whole story but it's still enough to suppress his curiosity for a while . Jack sneered in his mind, ' still wants to play dumb game in front of your grandpa, let's see then who is smarter than whom '. Jack asked again politely, " Thanks for your explanation master I m enlightened little but still I don't understand why me and what is Goutlet, isn't it furnace ". Old man looked at him and laughed loudly and said, " Indeed you are smart boy, kid we have plenty of time so why are you in hurry to know ever