In the shelter, the surrounding snow and the parachute above Bell's head reflected the heat emitted by the fire.
In just ten minutes or so, the temperature of the shelter had increased significantly.
Bell's hand slowly regained its agility. He held the dagger and cut a small hole that was about the size of a baby's fist in the snow.
"Our shelter is too small. The burning of the fire will increase the consumption of oxygen, so there has to be a vent to maintain the air flow inside our shelter. Otherwise, we might be poisoned by carbon dioxide.
It would not be funny if we cannot get up from our sleep.
Of course, if you build such a shelter in the wild, you have to be careful not to create the hole in the direction of the wind.
Otherwise, if the cold wind blew in through the hole, the shelter would lose its original effect and be unable to resist the cold. "
