The Andrew Wylie / Odyssey Books / Amazon / Random House story took an ugly turn yesterday when two different hashtags popped up on Twitter: @EvilWylie and @GoodRandomHouse.

Among their first posts: “Sizzling summer deals! Evil Wylie just posted e-book rights to Philip Roth’s backlist on Priceline. Name your price!” (@EvilWylie) and “True Fact: @EvilWylie is the reason there are reception issues with the iPhone 4.” (@GoodRandomHouse)

True, they do go off topic sometimes, such as when GoodRandomHouse posted, “Strange…Janet Evanovich just left the @GoodRandomHouse offices, and now nobody here can find their watches or jewelry.”

However their wrath is generally more focused, and seems destined to take down everyone in the business with them. For example, we first read about this on Publishers Lunch — and no sooner was that post published than the following appeared at @EvilWylie: “Evil Wylie loves @publisherslunch because I love eating publishers for lunch.”

This is getting out of hand, I tell you ….