Oliver , however , refuses to let the Wilkinsons leave and also invites their friends from London to move in .
When the Dial - a-Ghost agency realizes their mistake , they send the Shriekers to Helton Hall and ring the Wilkinsons to apologize .
Oliver , however , refuses to let the Wilkinsons leave and also invites Wilkinsons ' friends from London to move in .
When the Dial - a-Ghost agency realizes their mistake , they send the Shriekers to Helton Hall and ring the Wilkinsons to apologize .