Something about a large sparse room with an escape portal in the floor. To exit the room, one would step on a spot on the floor. Some people would vanish, some could sink.
I was tidying up something or making sure everyone else got out (though there was only me and a cat).
When it was my turn to leave, I sank into the floor. I was holding a cat and a rabbit.
As I was enveloped, I took a deep breath as there was a suffocating wet blackness.
I was concerned that this would be distressing for the rabbit and cat.
There was some sort of mental projection asking about three options of death notification and means of disposal.
I was injected with a burning fluid (it felt like my blood was boiling) and apparently I was killed. An electronic notification was sent to everyone on my contact list. Five minutes later I resurrected. I then had to tell people, no, there had been a glitch. I was actually alive. I also needed to assure them I’d not been killed in the first place, in order to protect the secret that I was immortal.
People I had not heard from in years (eg <redacted>) has expressed their condolences in the meantime.