After dinner, Rowan urged everyone to follow him to his study for a more private conversation. Rowan and Daniella preferred that Brylee remained quiet and let them tell Ryuu about her abilities. Contrary to their first agreement that Brylee will tell only about her abilities to Ryuu, Rowan and Daniella also told him about her sisters as well.
It was a surprise and much to Bell's disappointment.
Rowan wanted to know if Ryuu would also be willing to protect not just Brylee but the rest of her family.
But it seems that Rowan and Daniella were convinced by Ryuu and trusted him. They were still cautious because they didn't tell him about Lorcan's ability to read and manipulate a person's memory. They still have to make sure that after taking a risk with Ryuu, they still have a backup plan in case Ryuu has a change of heart.