John, I am sorry to hear of your loss, as well.
I don't know much about darts, but having read all of the time and effort all of you have put towards them, it must be hard to see one die. Losing any frog is hard, but some have a very special place in our hearts and that makes it harder. Best of luck with the rest of the darts, and I hope that no-one else looses a frog again any time soon...