Can They See Me

Sacha, our cat, had close encounters of the puppy kind today. We had our first full hissing, spitting, growling and flat eared encounter (all from the cat while the pups were happily wagging their tails.
I hope to keep them in the same area for a short period of time each day and hopefully lengthen it as time goes on. If anyone has any ideas how to get them introduced, I'll be happy to try it out.