The last volume in a trilogy, this book neatly wrapped up all the loose ends in the previous two books, while leaving plenty of openings for a second trilogy later. Who is the mysterious person the school librarian was corresponding with? He didn't believe her, but they're still a potential wild card. What about the mysterious Antarctic menagerie? What adventures will Logan have at Camp Underpaw next summer? How will his first trip hunting for a mythological creature go? I have no idea if they have any plans to produce sequels, but I love that they left the possibility wide open. I would love to see more character development for the newcomers to the Menagerie, as well as additional storylines for lesser characters that have been with us all along.