Samuel Blink and the Forbidden Forest by Matt Haig
At first I thought this book was going to be a copy of other children's stories (a house at the edge of a forest full of magical creatures that no one knows about), but once I got into the book it was original. The story was fun and well paced, and the characters were likable.
After the death of their parents, Samuel and Martha Blink are sent to live in Norway with their Aunt Eda. Aunt Eda's house is on the boundary of Shadow Forest, a dangerous forest inhabited by mythical beings. Against their aunts wishes, Samuel and Martha enter the forest and immediately run into danger. Martha becomes a prisoner of the Changemaker and it is up to Samuel to save her. But can Samuel survive the forest and be the first human to ever escape alive?