I don't understand why the head maid poisoned herself? If it was so the doses would keep going down couldn't she have just poured them out? It was disguised as medicine so it's not like it was mixed into the food.
𝐼𝓉’𝓈 𝒿𝓊𝓈𝓉 𝓉𝒽𝒾𝓈 𝓌𝒶𝓎 𝓉𝒽𝒶𝓉 𝐼 𝓁𝑜𝓋𝑒 𝓎𝑜𝓊… 𝓀𝒾𝓁𝓁 𝓎𝑜𝓊…