Another important element in the Hero's Journey is the Donor.
As you can surmise, the donor gives something to the potential hero. This can be information, but is often some useful tool or weapon that will help overcome the final obstacle.
Zandria and Olena meet their donor in the form of the Prismata, or Rainbow Princesses. The name I came up with implies their rainbow colors, each sister is a different color. Their contributions are a few gifts that are necessary to complete the quest. Some of the gifts are not actually used in The Fourth Queen (look for the Bronze Ring in The Secret Queen).
The final gift of the donors is to set Zandria and Olena on their path. A path which leads them to the next stage of the journey.....the encounter with the Mentor.