Surprised to know that −1 was the largest number here, Ted asked −13 about the smallest number. When it told him to ask −14 about the smallest number, he understood that it is impossible to find the smallest negative integer. To find 0, Ted went to its house with −13 and found it was empty.
After that Ted asked −13 about zero. He was shocked when it said that 0 was kidnapped by the positive integers and that its house has always been empty.
How is this even possible that 0 is not in the state of positive integers as well as negative integers?
Because 0 is neither positive nor negative integer
0 is neither positive nor negative integer.