What is the prize when Nesta, Gwyn, and Emerie finish the obstacle course?

Cassian and Azriel construct an obstacle course that Nesta, Gwyn, and Emerie can only finish by working together. It takes them two months to defeat it. When they do, Azriel tells them they have their prize. They have passed the Blood Rite Qualifier. Lord Devlon and another male are there to see their success.