Both Ottos and the House rely on each other for survival, until one day Elder Otto witnesses what a Splitting looks like for the first time. Disturbed by the painful event, he decides to make amends by reuniting the separated souls, even if it means killing himself in the process.
With the help of Olive, a precocious child, and Archibald, his long-time friend from the Parallel, they take on the dangerous task of uniting souls the House spent centuries Splitting. When not every union turns out the way they expect, they are left to question if what they’re doing is causing more harm than good.
Who will win the war between good and evil – and how many innocent souls will be lost in the process?