Sean, Minister of KtSP wrote:
Which brings me to my next point -- say a cleric did cast commune and discovers the king was assassinated, so what? Normally, when people uncover proof of an assassination of succession, they go into hiding for the rest of their lives for fear of torture and death.
Or, you could go in a different direction, and the king's ghost doesn't know himself. Being dead doesn't mean you automatically know everything that happened, ever. Heck, he might even think that it "was his time to go," and never knew about the poisons. He was extremely sick for the last few weeks of his life.