People of Danvers! Anyone going out into the town as of Monday morning will see some intersting new graffiti spraypainted on buildings, bridges, sidewalks, etc. The images range from pretty big to fairly small, all images repeated (and in various colors).
For you older vampires, and those of you paying attention in Vampire Lore, this is a vampire's ankh. Vampires often utilize the Egyptian symbol because it represents eternal life. Naturally, they have added a little vampy twist.
Wolves are the most notorious lycan, thus the most represented. This is a symbol often used for wealthy were families that like to keep bloodlines "pure". [Note: Image taken from the photobucket of Count J. Wolf of the House of Wolf. No friggin clue what that is, but he gets credit regardless.]
The Celtic symbol for angels.
These are the Pagan/Wiccan symbols for the four elements.
A very old, pretty obscure symbol of demons. Only people who have studied greatly or come from Hell/Hades itself would recognize it. [Note: It's just a random symbol I found from a Google search. Intergrate it into your character's culture as needed!]
All designs are accompanied by the same hastily scrawled message: "They are among us". If your kids know what any of the symbols mean, great! If not... wow aren't those weird. Is there a cult around here or something?