The first book was called The Name of This Book Is Secret and I really enjoyed it, and I couldn't wait until my birthday when I got this sequel.
The first book is all about two people (Dr. Luciano and Ms. Mauvias) who will try anything to live for ever, and they even take one of the story's main character's schoolmates (who they believe holds the secret in his brain) to a hotel called the Midnight Sun where they are doing their research.
This second book, having failed in their quest, they trace the knowledge of the secret to a scientist who, following some instructions, and mixing and matching ingredients, created a man from scratch. They believe if they can work out how he did this, they will have the secret of eternal life. But there is a problem, the scientist had all his work hidden in his grave when he died...
I really enjoyed these books, and I am eagerly awaiting the third installment in 2010.