Ninja Librarians #1: The Accidental Keyhand by Jen Swann Downey

My name is Dorrie, and my brother Marcus and I have literally fallen into Petrarch’s Library. The lybrarians ensure the survival of free thought by traveling back to key moments in history. Keyhands are carefully trained to open portals in time, but somehow I opened a new one from the 21st century. Marcus accidentally tore a page from a History of Histories book, and it’s now missing. This can be disastrous if The Foundation finds it! The head of security Francesco already thinks Marcus and I are working for them, and I’m afraid my brother may have dropped the page in Ancient Greece! We seem to be keeping more and more secrets from everyone, and it feels like it's too late to come clean with the truth. But if we don't tell someone, history may be changed forever.

This book told a fun story about two kids being dropped into an unbelievable situation. The lybrarians are taught the basics of the job, but they also learn other necessary skills to protect free thought throughout history. Lucky for Dorrie, sword fighting is one of those skills, and her training became an important subplot. An early conflict involved a duel for honor that found her very unprepared. On the other hand, her brother's main focus was on getting a date with a cute instructor. The missing page became the main conflict and developed into a mystery with many suspects. The kids thought they knew what had happened but later realized the page must have been stolen. The thief wasn't revealed until near the end, and this event kicked off an exciting adventure toward the climax. I first heard about this book in a Goodreads discussion group. Overall, I enjoyed the novelty of the story and recommend you give it a shot.