Hi, I'm hoping for some advice, we were packing up a spare bedroom in my MIL's house to get it ready to redo the floors, nobody has really been in there for about 10 years, we found a hand appliqued quilt under the bed and it looks as tho one of her cats may have had kittens on it (huge "blood" stain?) It is a twin size quilt and the stain covers about a 1/4 of it? any hints, advice or tips I would love to hear them