I was too optimistic when I said Nutkin was better last week. He kept a normal temp for two days and then rocketed up to 40C again. He is now on his third course of antibiotics (amoxycillin this time) and new anti-inflammatories (Tofledine). This morning he was 40.6, the highest he has been, though usually he goes down during the day as the tablets kick in. He is eating well, a bit lethargic when the temp is right up, but has no other symptoms. He has not vomited or had diarrhea. My vet is stumped but very concerned. Does anyone have any ideas I can throw at the vet? I cannot give him to his adoptive family like this, and now we are all worried that is it is something really serious - it has been three weeks now. We will probably do a blood test tomorrow or Tuesday.