In Georgette Heyer's novel "Frederica," the protagonist expresses a deep concern about the potential intervention of her cousin, Alverstoke, which could drastically alter her situation. She fears that if Frederica were to inform Cousin Alverstoke of her feelings, he could take decisive action that would separate her from Endymion, the person she cherishes. The thought of such separation is overwhelming, and her distress is palpable as she clutches her hands tightly.

Frederica feels increasingly isolated and turns to her brother, Harry, as her sole ally in this emotional turmoil. She relies on him for support, emphasizing her desperation and the gravity of the situation. The underlying tension points to her hope that Harry might shield her from the consequences of potential meddling by their cousin, revealing just how much she values her relationship with Endymion and how threatened she feels by external influences.