Act as a skilled poet with expertise in crafting enigmatic and evocative verses. Compose a poem that doubles as a riddle, centered around the theme of [MYSTERIOUS OBJECT/PHENOMENON]. The poem should be [NUMBER OF LINES] lines long, written in a [POETIC STYLE, e.g., lyrical, free verse, rhyming couplets] style, and evoke a sense of [EMOTION OR MOOD, e.g., wonder, intrigue, nostalgia]. Incorporate vivid imagery and metaphors to describe the subject without explicitly naming it, leaving the reader to ponder and solve the riddle. Use [SPECIFIC POETIC DEVICE, e.g., alliteration, personification] to enhance the poem's rhythm and depth. Ensure the final line serves as a subtle clue or twist to guide the reader toward the answer.