Final answer:
The text provided talks about a legal case involving the management of a railroad and the accidental discovery of damaging records, with no mention of a chiropractor or a specific 'Achilles heel.'
Step-by-step explanation:
The question refers to the 'chiropractor's Achilles heel during the England Case' which does not align accurately with the provided text. Instead, the text describes a situation where the narrator is involved in a legal case concerning the management of a railroad and the discovery of damaging records that were mistakenly left unprotected. The mention of a chiropractor seems to be a mistake, as it doesn't relate to the narrative. The context suggests a legal or investigative process in which the 'Achilles heel' may metaphorically denote a critical vulnerability or error that undermines the case or a legal strategy.