Books by Nykko

To stay alive and return home, Rebecca and her friends must strike the Master of Shadows at the source of his powers, a crumbling castle fiercely guarded by the Shadow Spies.

Rebecca, convinced that she will die if she does not return to the other world, enlists the help of Theo and Noah to open a new passageway, but once on the other side they fall into danger and Max, unaware of the peril, follows.

"Lexile level: 350"--Publisher's website.

"Lexile level: 300"--Publisher's website.