I just got a piece of spam with the following text appended; the spammers get better and better at defeating the spam filters:

Was not the door closed? asked the Princess
Yes, your Highness; I am sure it was; for when I opened it Dorothy’s white kitten crept out and ran up the stairs
The rails were lined with officers and men straining their eyes for the first sight of their beloved VATERLAND after a long foreign cruise, and a ringing cheer, as from a thousand throats, came faintly to Rob’s ear
Hearing this, Dorothy and the Wizard exchanged startled glances, for they remembered how often Eureka had longed to eat a piglet Again the scene changed, and within a dingy, underground room, hemmed in by walls of stone, and dimly lighted by a flickering lamp, a body of wild-eyed, desperate men were plighting an oath to murder the Emperor and overthrow his government

It appears to be a selection of lines from public-domain e-texts. There’s an Oz book in their, obviously; anyone recognize the other bits?