Horsey Ashes by Saltyhalibut

Brad Wu was just another boring schmuck like you and me until the fateful day he met his pet horse Betsy. The horse's speedy demise and cremation will lead Brad down a highly unlikely path full of cultists, slavers, alien gods, and abnormally terrible luck. But it seems that the horse isn't ready to be killed off just yet, as a strange twist of events has Brad accidentally inhaling the beast's ashes. Turns out that horse ashes bestow incredible strength, speed, regenerative powers, and the ability to speak to ghosts. For a little while, at least. Follow him and his bizarre gang as they journey across Canada to the fabled city of Calgary in pursuit of fame, followers, and freedom. There's no way this story ends well.