"I-I-I don't believe it!" Clara said with a frown on her face. Then, she added, "S-Show me a proof! Else… I won't believe that you are someone acquainted with my savior! I-If you could prove it to me, then… I might even give you my loyalty!"
Pedro could not help but gasp in response. Although Clara was stuttering when she spoke, Pedro knew from what she said—how she looks up to Madame Soledad and how her life changed because of her. But despite her sincerity and tempting offer, Pedro had no other means of proof other than the Karakoa ship that he inherited from Madame Soledad.
That said, it does not mean that he would immediately bring Clara to the ship because of a spoken promise. He was not that dumb to do that.