You do need to take him to a vet to make him vomit. Dark chocolate is the most poisonous of all chocolates and a king size of dark chocolate will kill. I don't know why others are saying it won't.
This is a serious matter since like I said, it's dark chocolate. And 13 pounds is a lightweight. 2 ounces is severe toxicity for your size dog.
You need to take him to emergency now! I'm a vet tech, trust me on this.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.