I make this commitment now: the Demonsword Project rules-as-written and setting-as-written do not support travel into the past, and as a direct consequence, do not support prophecy (knowledge of the future, or in other words, knowledge travelling to the past). This seems to be a strange statement, especially when you realize the official canon suggests that time travel may have happened.
The justification for this is iterative time-space--in other words, this moment erases the one that just passed. The past does not literally exist anymore, and therefore cannot be traveled to; similarly, the future does not yet literally exist, and you cannot discover anything about it by prophetic means. By mundane means, by all means try; meet people, learn physics, understand the world and predict it, but it is a guess, not prophecy, binding or otherwise.