John Hornor Jacobs 
Conformity [PDF ebook] 

Mr. Quincrux is dead. Armistead Lucius Priest, founder of the Society of Extranaturals, is now seated uneasily in his proteges flesh, and though Priest’s powers are not inconsiderable, the Conformity will not settle for the second-brightest flame in the etheric heights. It will confront Shreve. But it will have to find him first. Under the protection of Mr. Negata, Jack, and the rest of the Irregulars, Shreve retreats to the wild to face his demons and prepare his mind for one more battle. The Conformity is the breathtaking conclusion to the acclaimed Twelve-Fingered Boy Trilogy.