I loved the story. The idea is that all the mythical and magical items of the world over the year have been gathered and stored and there is one family that has passed down custodianship of this storeroom over the years. The concept itself is genius but the execution was a little lacking. 
 I was going back and forth whether it should be a 3 or a 4 but because I liked the book so much I'm going for 4. 
 I'll tell you why I was leaning towards a 3. The writing style. It is well done but seems simplistic at times. I kept thinking the story was for a kid which is fine with me but then things would be more complicated and didn't always seem like a child could follow it all. 
 Another thing that threw me at times was the continual jumping around in time to different aspects of the story that would later come together. Now having said that, I also loved that about the story. It felt like 4 stories merging into one even though some of the stories had taken place thousands of years earlier. 
 Also, being a fan of mythology, I enjoyed the mythological aspects which were wide in range. 
 While this book is a very easy read, it never once bored me. I was interested the entire time I read it and looked forward to reading more as I moved through the story.