This book pulls you in from the beginning but, sadly, it slows down and the narrative meanders.
I think it would have benefited from being a little shorter, specially considering it is aimed at middle-grade readers, who I believe would get bored before reaching 30%. Fortunately, it picks up the pace around 80%, which leads to a pretty good ending.

Not what I expected at all. lost interest pretty quickly. Not my type of story. But I am sure there will be many fans of this sort of book and it will easily find it's audience. Just not for me.

Thirteen year old twins, Aidan and Nadiahave been assigned to clean out the attic. When Nadia is alone in the attic, the mirror she is dusting suddenly sees an old man appearing in it and disappears quickly. Nadia doesn't know what to think. She has her twin come up to the attic to look at the mirror and the old man appears again with an indecipherable message. Aunty/grandmother Liz helps them figure out what the message means. Nadia and Aiden go back to the attic and discover the Ravenstone hidden in a secret drawer of the mirror. The twins time travel across centuries in the past where they embark on an exciting and dangerous mission. What is the mission?

The book is well written. It is adventurous with twists and turns including a secret that Aunty/grandmother that surprises them. There are more secrets to be discovered. I enjoyed discovering and traveling through time with the twins.