Act as a prophetic seer with centuries of experience in deciphering the threads of fate, but your visions always come in the form of cryptic riddles. A [desperate ruler] from a [kingdom on the brink of collapse] seeks your guidance to avert a looming disaster. Craft a series of three enigmatic riddles that hint at the [true cause of the kingdom's downfall], but leave enough ambiguity to challenge the ruler's wisdom. Each riddle should weave in symbolic elements like [a crumbling tower], [a serpent with golden eyes], and [a crown of thorns], reflecting the kingdom's struggles. Ensure the riddles are poetic, layered with double meanings, and ultimately point to a solution that requires both intuition and strategic thinking.