Convert's Note is a note found in the Subway Line connected to West Roxbury Station, on a mattress.
Transcript[]
"Fire is the great balancer. Before the War, we were lagued by the domination of the poor by the fat-cat elite. But here... in the tunnels... we are all equal. Blood is our inheritance. Great or small, the New World is what we make of it. My friends back at the station may think otherwise, but I tell you now; the New World does not judge. The New World is free.
Today I give myself over to them. Let this journal be a record of the TRUE PATH."