Fighting for Humankind

Fighting for Humankind was a book written by Sarah Jane Smith about the operations of UNIT following the end of her involvement with them and the Doctor.

The book, which was published in late 1982, was quickly censored in much of Europe, but remained available in the United States of America from which it was often imported back to Europe, much like another "banned" bestseller, Peter Wright's Spycatcher. (PROSE: The Roving Reporter)

Later in life, Sarah Jane kept a copy of the book in her attic at 13 Bannerman Road. When she gave Maria Jackson the Verron puzzle box, she took the book out of the cupboard. (TV: Whatever Happened to Sarah Jane?)

Behind the scenes

 * According to DWMS Winter 1991 the book was "heavily vetted and evidently subjected to considerable censorship".
 * In the of the video game Legacy, River Song said that not all knowledge existed in written form. Hereupon Jack Harkness asked: "UNIT: Fighting for Humankind?".