I have my second kitten brought to my home and she is very scared to mingle with us and old kitten is hissing at the new one
Need to know if your expertise could help us
Donot mingle both of them as of now only
Try to keep them seperately for 1-2 after that try to introduce them to each other
If they become comfortable then only mingle them
And first try to make her comfortable with u people
Change in place and isolation from mother can be very stressful, give the kitten some time to adjust herself in the new surroundings. Rather than forcing her to interact try to grab her attention with a toy, cats usually like things that are hanging or something which makes some sound. When you introduce the two of them please monitor to make sure the older cat doesn't injure the kitten. It'll take a few days to a few weeks for her to become comfortable.