After the Doctor rescued Romana from a man dressed up as Kroll. Man is the monster, the monster is a man. Read #16 on similarities cliff notes between Lost and Doctor Who – The Key to Time. The Doctor and Romana discover a shaft. The shaft looks similar to a well. The Doctor says the following: At the bottom of that shaft is a passage. I wonder where it leads to. [He then drops a lock that he found into the shaft to gauge the distance to the bottom.] I looked like the scene where Desmond and Flocke were above the well and Flocke dropped the torch into well.
The Doctor climbs down the shaft and comes back up with a book. As he reads through the book he reads the following: “And Kroll, when Kroll awakened he saw that the people were fat and indolent, and then Kroll became angry and struck them down, swallowing into him the symbol of his power and killing all who were in the temple, even Hajes the priest.”
This to me is describing the scene where Flocke stormed into the temple after Dogen was killed (the priest) and killed everyone that remained that wasn’t on his side. They actually show a scene similar to the Smoke monster storming the temple (i.e. Kroll invading the refinery). But the words that precede it are like the director giving his input to the actors.