Arcadia

Arcadia is an Imperial apothecary and an expert alchemist who runs Arcadia's Cauldron in Whiterun.

Wares and amenities
She sells potions and poisons and allows the Dragonborn to use her Alchemy Lab.

Personality
She also misdiagnoses the Dragonborn, often remarking "Pardon me, but do I detect a case of the Rattles? I've got something for that," regardless of whether the player has contracted the disease or not; sometimes she sees a nonexistent case of Ataxia ("It's quite a problem back in Cyrodiil"). She will occasionally refer to the Dragonborn as a Nord regardless of the hero's actual race.

Salt For Arcadia
Farengar Secret-Fire sends the Dragonborn to Arcadia to deliver Frost Salts. Arcadia mentions they will be used to make a love potion, stating she will test it on Farengar, as a joke. After delivering the salts, it seems to make her more friendly to you, as you can now take many Alchemy ingredients and potions (but not all) without it being considered theft.

Hired Thugs
If stolen from, she sends hired thugs after the Dragonborn to teach them a lesson.

Quests

 * Salt For Arcadia

Bugs

 * She may not have dialogue options for selling items. This may happen if the console command, "Resurrect" is used to bring her back to life after killing her.
 * Arcadia may refer to the Dragonborn as a Nord, even if they aren't one.
 * If you press the Dragonborn up against the counter when you first walk into the store, the orange dragonfly on sale will slide across the counter to a place infront of her, or if you run fast enough, might fall off behind the counter.

Аркадия