The Thickety #4: The Last Spell by J.A. White

My name is Kara, and my brother Taff and I must find the rest of the original grimoire called Vulkera before Rygoth can collect all four parts. The legendary spell book will give her indescribable power, and she will use it to destroy the world. She's already sent the twins and an army of witches to kill us. We spoke to a man who helped locate the four parts of the book, but Taff may soon pay the price. Rygoth beat us to the first cover of the book, so we've traveled to an abandoned castle in the middle of the desert to capture the small chest containing the pages. However, the chest is guarded by a creature that won't stay killed and only exists to protect it. We killed it with an arrow, but it rose again with new defenses for our attacks. To complicate matters further, I've allowed Grace to travel with us despite the treachery she's shown in the past. I believe there's good in everyone, but what if this time I'm wrong?

This book is the last one in a four-book series, and you need to read the others first. Grace's character wonderfully complicates the conflict, because you never know if she's good or bad. She says she's given up magic and helps Kara along the way, but Kara continues to have doubts. The question is never clearly answered even at the end of the book. Kara and her brother make a good team. She has all the magical power, but Taff has the brains (even though he's only eight years old!). Kara has an ability to make mental bridges with other living things, but it costs her memories. The greater the connection, the greater the memory loss. This creates conflicts, as she tries to defeat Rygoth. Kara's doubts and Rygoth's seemingly unlimited power will hold the interest of adventure lovers. Surprisingly, the book's epilogue even holds an unexpected twist that resolves a final issue.