The mystery of the peed-upon down comforter is solved. It wasn't Max, though he took the fall and lost his masculine appendages because of it. No, a week after Max came back from the vet much subdued, another puddle appeared on the bed and this one revealed a pinkish tinge. Fortunately, the comforter is not ruined this time, since only one corner got wet and it can be either cut off or tucked way underneath the mattress. I soaked it in vinegar, at the advice of other catpersons.
No, it was Lily, who had a bladder infection and now is on antibiotics and special food. The only problem with the special food (aside from the fact that it is ungodly expensive) is that Lily doesn't like it. So we will revert to the special diet Friskies I had been using sporadically in the past year; all cats will get only the urinary tract special diet of Friskies from now on. I hope this will stave off the problem. If not, we'll see if there are other alternatives to Royal Canin and Science Diet at $1.25 per 5.5 oz. can. Luckily I only bought four cans. I'll get some of the dry stuff to try out.
So poor Lily was sick and I didn't know it until she had an accident on the white coverlet. Poor baby. She's feeling better but not back to herself. And I am keeping the bedroom door shut until I can get the bed made and put down something protective.
I'm off to a Mystery Murder party tonight up in Coupeville, put on by a member of the congregation. I feel quite up for it, now that I have solved my own personal mystery without having to murder anything.