Oh, Kim, there are no words to express my sorrow at reading this; I am so, so sorry for your pain. Tears and prayers coming that the Creator will send an angel to watch over your beloved Mystic and help him to recover.

Years ago, I had a cat who seemed absolutely fine at lunch time and was dying by 8 that night: an infection around her heart. (myocarditis or endocarditis - I've forgotten which). I can understand your bewilderment, for I was bewildered, too. It was caught, and Kalli recovered. I pray the same for Mystic. It's impossibly difficult to have them leave, but even moreso when they're so young.

Prayers on the way for Mystic and for you - that the Creator will bless you with whatever you most need to get through this.