Magisterium in Luray, Virginia
He was one of the nine mages present at Call's Iron Trial and even supervised two of the tests for Call's group. He was also an instructor of one of the Iron Years' classes. At one point, he was seen returning from the Mission Gate, looking injured, along with several students also in bad states, from a mission that had gone poorly. He ordered Call and his friends to leave the area.
Near the end of the school year, Rockmaple received a new apprentice: Rafe, whose former mentor Lemuel was dismissed from the Magisterium.
In the Golden Tower Rockmaple is killed by Alex Strike as Devoured of Chaos. Rockmaple was trying to protect two Iron Years' when he was dragged into the void.