Somehow, through means that completely escape me, the print version of the Hartnell book is missing the chapter on The Massacre.
That chapter is, of course, already up on the blog, but since the book features revised and expanded versions I have replaced the blog version with the revised book version. I will also be including the essay in the Troughton book this spring (or maybe summer) as an errata so those who are buying the books at least have all the essays.
The chapter is present in the ebook versions, for what it’s worth.
My sincere apologies for the oversight.