In what year was the album “Unseen” released by The Haunted?

In what year was the album “Unseen” released by The Haunted?: The album “Unseen” was released in 2011 by The Haunted, featuring 13 tracks.
What is the most successful song from the album “Unseen” by The Haunted?: “Disappear” is the biggest hit from the album “Unseen” by The Haunted.

Other artists of Heavy metal music