Doon by Lorie Langdon, Carey Corp is ideal for readers who enjoy adventurous, fast-paced young adult fantasy with elements of romance and friendship.

Step-by-Step Explanation and Answer
Based on the book description, the key elements are:
- Genres: Young Adult, Romance, Fantasy
- Moods: adventurous
- Pace: fast
- Themes: friendship, romance, enemies to lovers, Fairytale

Reasoning:
The book's themes of friendship and enemies-to-lovers romance suggest a narrative focused on relationships and personal growth. The adventurous mood and fast pace indicate a story that is engaging and action-driven. Combining these elements, the ideal reader would be someone seeking a dynamic, relationship-driven fantasy.

Doon is ideal for readers seeking a fast-paced, adventurous fantasy with romance and themes of friendship and personal growth.