When was evil created?

[Baalzebutt]

In another thread there is an ongoing discussion about adam, sin and evil. The discussion brought up another thought that I think needs to be addressed.

Yesterday I sat down and read about half of genesis. In the creation story, genesis covers the creation of heaven and Earth, plants, water, beasts and man. But there is no mention of the creation of angels.

So when eve was tempted and ate the fruit, she was deceived into doing so by the serpent. I gathered in my reading that the serpent represented evil, if not satan himself (if it wasn't evil or satan, then where did it come from since evil didn't exist until lucifer fell?). That means that the angels had to have been created and lucifer had to have fallen fallen at some point BEFORE god created everything else. Otherwise, satan (or evil) would not have been around to tempt eve.

However, genesis makes no mention of the creation of angels unless you think that they were created as part of heaven or the firmament or something else that was directly mentioned. If that is the case, wouldn't angels be important enough to mention specifically in the creation story? Also, this would mean that lucifer fell during the first days of creation and that isn't mentioned either.

Am I missing something? Drich, GC, Strudel, Catfud?