CHAPTER XVIII.

1870-1873.--A. L. Riggs Builds at Santee.--The Santee High School.--Visit to Fort Sully.--Change of Agents at Sisseton.--Second Marriage.--Annual Meeting at Good Will.--Grand Gathering.--New Treaty Made at Sisseton.--Nina Foster Riggs.--Our Trip to Fort Sully.--An Incident by the Way.--Stop at Santee.--Pastor Ehnamane.--His Deer Hunt.--Annual Meeting in 1873.--Rev. S. J. Humphrey's Visit.--Mr. Humphrey's Sketch.--Where They Come From.--Morning Call.--Visiting the Teepees.--The Religious Gathering.--The Moderator.--Questions Discussed.--The _Personnel_.--Putting up a Tent.--Sabbath Service.--Mission Reunion. 270