The Weird West Chronicles

PCS are on their way to town when they hear a a coyote shriek horribly loud and strangely unnatural cries. Not long thereafter they discover the cadaver of a man who was killed that same day (with a kife in the back). The only clue about this man is that he probably was a bounty hunter; however there is nothing else obvious, such as whom he was after, or whoever killed him. 

-- Then the PC arrive in town, and they are quickly arrested by a number of armed men who angrily ask them what's their business here. In any case they bring them to their chief, Mr. Walden, a rich man who remains in his house, with guards all around on alert. Walden seems anxious, but speaking with the PCs will somewhat quiet down (unless the PCs behave suspiciously, which may directly lead to some gunfight). For some reason the man fears for his life; he tells the PCs of the "Coyote de la Muerte", which, when it is heard, is a sign of impending death. And Walden strongly believes that the next such announced death will be his own, although if he has a good reason to believe so, he won't explain it. Depending on what the PCs say, he may ask them their help, for example in finding the murderer of the cadaver they found earlier. 

-- In any case, a few hours later, preferably at night when the PCs are in the saloon, they again hear the horrible coyote shrieks. Shortly thereafter Walden is found dead, killed in the same way as the bounty hunter. If they investigate, the PCs will learn / discover, that an ancient Indian book (or buffalo skin, whatever) that Walden had acquired a couple of months ago, has just gone missing. One of his men may tell that the man had for intent to mount an expedition to some mountains not far away, as the book/buffalo skin/whatever looked like it was a map to some sacred place. It appears that Walden was a dabbler in magic, or at least interested in it, and hoped to find some source of mystical power in these mountains... which happen to be in Indian territory. After learning about the missing book/buffalo skin/whatever, the PCs will discover (provided they investigate) that Walden's murder was probably perpretrated by a criminal wanted by the law, and who has a hefty price put on his head. This may be a motivation for pursuing him and the book/buffalo skin/whatever. 

Random Encounter

-- When the PCs reach the mountain area, they will be ambushed by Were-Coyotes.
-- The Book is a source of power for the tribe. But they do not have the book.

Were-Coyote x4