midnight
This conduct of his chief interested Chick deeply . `` Watch Nick Carter , '' he said to himself , `` and you 'll always be learning something . '' `` Of course he did n't bury him then , '' Deever replied to Nick 's question . `` Haskell saw him digging the grave after midnight . '' `` Where do you suppose your brother 's body was in the meantime ? '' asked Nick . `` Hidden in the garden somewhere . ''