Look closely at where she stands. She's standing on an elevator that's separated from the foundation of the wall. The wood frame occupies the elevator.
[spoiler]The wood is a cage.[/spoiler]
[spoiler]No.[/spoiler][spoiler]You cannot stop Eva.[/spoiler][spoiler]Eva is forever.[/spoiler][spoiler]No wooden cages can stop her.[/spoiler][spoiler]Nothing can stop Eva.[/spoiler]
[spoiler]Weak wood.[/spoiler][spoiler]Your magic is is nothing.[/spoiler][spoiler]Eva does as she pleases.[/spoiler][spoiler]You are lucky she let's you live.[/spoiler]