Copium

Copium is an drug of the morphinan structural class. It is chemically similar to, but with a cobalt atom crammed up in there, hence the name.

Copium occurs naturally in the excretions of the Kindreds russet poppy (Papaver agriliana), native to the islands of the Kindreds Sea. Competition for control over the lucrative trade in copium was a key factor in the outbreak of the Kindred Wars during the 17th century AD.