Where any grantor appears in any action to defend his warranty or fails to appear after due notice, the court shall determine all the rights of all the parties, and in case the recovery is adverse to the warranty, the warrantee shall recover of the warrantor the price of the land paid for the conveyance at the time of the warranty, the value of all improvements lost, if any, and all sums necessarily expended, including a reasonable attorney fee, and interest at the rate of ten percent (10%) per annum on all sums so paid from the time of payment. R.L.1910, § 1167.
Oklahoma Legal Code