I just woke uo and went to call the dogs in for the night. Everybody came in but Happy. I went out to look for her and found her in the yard. They were all fine when I got home a little after 4:00. She was running around and playing. Too cold for it to have been a snake but not cold enough for her to freeze. They have a shed with heat lamps and it is only in the 40's. She acted fine just a couple hours ago. She had her shots and was wormed, can't see any marks on her......Poor Hannah, Happy was her Christmas puppy. RIP, Happy, You were loved!