Put it outside.
Don't put it outside, do call the local vets.
Put it outside.
Stick or in the bin outside, history teaches us the cat will find is way home
That my LOST CATWe found the people who had lost their cat and it isn't theirs. So I just let it back out again. Excitement over but here's a picture to make the thread worthwhile
Daily Fail headline "Miracle lost cat sign grows legs and wonders into mans house"
As above, looks like a Bengal (I've had two) and wil almost certainly be chipped. You might even be able to feel it, at the base of the ear is a common spot.
Possible reasons for not having a collar -
1) It's an indoor cat and doesn't wear one
2) It had one and it's come off. Cat collars are not like dog collars, they are usually designed to unclip if they get caught in something which they often do. Owner is probably frantic as most Bengals are indoor cats and they are generally lacking in road sense.
Get it scanned.
Open the door,let the cat go back out.
A cat of that pedigree should have a collar.