"And then the murders began"

[Tusky]

Here is Edward bear, coming downstairs now, bump, bump, bump, on the back of his head, behind Christopher Robin. And then the murders began.

[Jubal]

I'm pretty sure that that desecration of Winnie-the-pooh gets you an instantaneous ticket to muffin hell. That is, nonetheless, somewhat brilliant.

Also this one works:
The book you now hold in your hands went through a number of iterations before it, and the ideas in it, began to grow into something book-shaped. And then the murders began.
(The opening to the game studies volume "Playing with the Past".)

[dubsartur]

Philology reigned as king of the sciences, the pride of the first great modern universities- those that grew up in Germany in the eighteenth and earlier nineteenth centuries.  And then the murders began.

(Touches up the edge on his pocket knife while whistling "Die Dreigroschenoper")

[Glaurung]

There was Eru, the One, who in Arda is called Ilúvatar; and he made first the Ainur, the Holy Ones, that were the offspring of his thought, and they were with him before aught else was made. And then the murders began.

[Jubal]

There was Eru, the One, who in Arda is called Ilúvatar; and he made first the Ainur, the Holy Ones, that were the offspring of his thought, and they were with him before aught else was made. And then the murders began.

That it, that's the Silmarillon. The rest of the book is just minor details really

And another:

For thousands of years, until the XVth century, the Mediterranean, surrounded by its three continents, was the cradle of peoples, empires and civilisations, which occupied, dominated and fashioned it. And then the murders began.
- Carthage: A Site of Cultural and Natural Interest, by Abdelmajid Ennabli