Help please Im worried :(

Okay so my cat had her kittens yay they're 9 weeks old now and only came out of hiding 2weeks ago. They were born outside as my cat is an outdoor cat. There is 3 kittens. But 5 days ago they went missing with their mum too. We have been leaving out food but it hasnt been touched. I've looked around but caant't find them. Theyt havent had much human contact (the mother has though) and when they came out they hissed at us. When i woke up the next day ready to train them they were gone. Will they come back? i havent seen them otr their mother for 5 days and i'm really worried help

Yeah, they had moved...  By some reason they saw it fit to move.

  With a little luck they will be back.  You cant know.

At best, some vigorous neighbour or a rescue group saw they were homeless, and managed to trap them all in a sweep.   And hopefully, is fostering them now intensively, inside only.

But.   Try ask at the local kill shelters - they are perhaps in their death row, if it was the City Animal Control authorities whom took them.   Hurry, they seldom wait more than a few days if someone ask for them.  Execution follows otherwise.

But if they dont get back, so they wont get back...

Sorry.

Good luck!

The mother came back today, with one meow her kittens came running out Thank you stefan