timelets

“...it was so steep it was thought to be impenetrable. It is on the side of the city that faces Mount Tmolus. It so happened that the day before, Hyroeades the Mardian had seen one of the Lydians climb down at this part of the acropolis and recover a helmet that had tumbled from above. Hyroeades watched him carefully and committed to memory what he saw. Then, the next day, he ascended the height at the same place with other Persians following behind. In this way, when many had made the climb, the acropolis of Sardis was taken and the whole city fell and was sacked.”

--- Herodotus: Histories.

Any helmet recovery attempt should be confidential.