The Imperturbable Patroness
From Fallen London Wiki
She won't be with you long, but together, you are a force that few can withstand.
This item only exists in a specific location and cannot be carried, used, or equipped anywhere else. For details, see Flint.
See here for a list of how to obtain this item, or click to show them.
It cannot be bought or sold at The Echo Bazaar!.
Effects when equipped in Companion slot:
This item has no other documented uses, but it may have FATE-locked uses.
Wiki note: You lose her as a Companion before going back to London. There's also no actual stat-challenge she can help with in the short interval you do have her. Hence, this item is not included on the Best-in-Slot lists.