"It occurs to me that looking before one leaps, or bashes in a door, is generally a sound idea," responds Lissa, "As to the clicking it was very faint and occurred soon after the wailing stopped. It was mechanical I believe, I've never heard that sound occur in nature." Shrugging and looking slightly uncomfortable she tentatively suggests, "Perhaps we should try knocking? If it is a who in there they have good cause to barricade themselves in and could be jumpy."