Exposure to high enough amounts of arsenic can be fatal. Exposure to lower levels of arsenic over longer periods of time can cause skin changes, liver and kidney damage, and a shortage of red and white blood cells, which can lead to fatigue and an increased risk of infections..
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Arsenic, also known as Arson to his packmates, isn't as threatening as his name suggests. If anything, he should have been named Harmless.
This guy had joined the pack back in it's early days, when only Molasses and her mate were the only ones roaming the forest together. The day he had joined, he was at his lowest point, fighting disease and hunger and all the threats of the forest. The two leaders nursed him back to health, and in return, he gives them his ever lastting loyalty.
When Arson was just a pup, he belonged to an infamous pack, born to killers and raised by murderers. They would kill their own kind just to get their way and destroy the forest wherever they went. When he was old enough, he left and never looked back. A year he had survived by himself. Not to shabby for a small, young, lone wolf. Even he had to admit, he did a good job. He only killed when he needed to, avoided fighting his own kind and making friends with the local wildlife. Anytime he had to kill to survive, he would return the remains to the family and even help to make a burial and grieve. He knew it was in his nature, but he didnt want it to be.
The local animals understood that some of their friends had to leave every now and again, and were more than happy to allow Arson to eat as he respected the law of the land and them.
Arson is just a good boy. A very good boy.
Hunter 
Hunter