"I see," Princess Charlotte uttered. "We accept it." She added.
Nana didn't have to say anything for the Princess to process what she meant by this. By giving the Blood Pond essence to the Princess, Nana was essentially handing over to the Phoenix royal family, and in turn, throwing a hot coal for them to carry and removing a dangerous target away from her team's back.
Now, Nana had removed the suspicions that had team had some Blood Pond essence. While some could argue that they still did, they didn't think it was feasible.
They didn't think that the Blood Pond was easy to find and up until now, they didn't even think that something as precious as this could be found in large quantities.
If anyone still had any type of suspicions about the Alexander team still having more Blood Pond essence and they tried to pursue this thought, they would be met with a justified death.