The Eaters Of Poison
Malevolent, dangerous, and capable of killing merely by scratching someone’s skin, the Eaters of Poison belong to the Ancient Association of Alchemists.
They are looking for the long-lost Book of Arthepius, a manuscript that holds the secret to longevity. Their quest clashes with that of the kids and Dr. Khalid.
Just the sounds of their voices and the smell of their robes is enough to turn anyone's stomach. However, they keep their promise to Adam and help his scientist
friend Dr. Mercury Jones perfect his universal antidote. They also give Adam a very useful gift.
"We do not share our secrets with outsiders, but this Mercury Jones ... is he a practitioner of the ancient arts?"
Chronicles of the Stone Book 2