The New Shadow

The New Shadow refers to an abandoned manuscript. Tolkien wrote about the coming of the "Dark Tree" which was an abstract that described how deep evil's roots were in the planet of middle earth. The New Shadow itself could possibly be seen as Herumor--but this may be unlikely as the manuscript talks about Herumor being the leader of the cult and the manuscript seems to denote someone else as the "New Shadow." Who this is...we may never know.