Spice and Wolf, Vol. 23 (light novel)

Holo and Lawrence earn themselves another spot in the history books after they save Saronia from being swallowed in debt. In return for their help, the two receive an enviable reward-a noble title. While Lawrence is beyond delighted, Holo and Elsa are wary of the generous gift. Perhaps their fears are warranted, because it seems the title comes with a shady plot of land tied to the legend of a giant serpent!
Between more stories of summer adventure and moments of parting with friends new and old, Holo and Lawrence have at least a few more journeys in them.