There would still be signs. The food rots - but it would leave traces.
Only if the tube was used for long enough to need food.
If you are hiding your family from almost certain death, 24 hours with no food or water in a cool dark cave is a possibility.
Only if the tube was used for long enough to need food.
If you are hiding your family from almost certain death, 24 hours with no food or water in a cool dark cave is a possibility.