400. That’s an error.

Google cannot redirect you to http://dogbert.abebooks.com/servlet/SearchResults?tn=epistle+comfort+reverend+priests,+honourable,+worshipful,+other+lay+sort,+restrained+durance+Catholic+faith because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.