Section 1945. Hearing and final order upon appearance of adverse claimants

If any person shall appear on the return day of said notice and claim in
  writing an interest  in  the  real  property  adverse  to  that  of  the
  petitioners, stating the nature of his claim and his place of residence,
  the  court  may  proceed in like manner to inquire into the truth of the
  facts stated in the petition and may make a final order in  like  manner
  and  with  like  effect  as above provided, except that such final order
  shall not affect in any way any person who shall have  appeared  on  the
  return  day  and  asserted a claim adverse to the petitioners, as herein
  provided for.