Wyvern Attack! (5e)

From the introduction: The PCs investigate rumors of a plot to seize the local copper mines and in doing so they suffer a wyvern attack and possibly unveil the town’s mayor as the real villain. The heroes may also end up exploring an abandoned mine and confronting two wyverns and an orcish shaman in their cliff-top lair. User summary: An adventure for four or five characters of 7th - 8th level.