Scholastic, New York, 1969, reprint.  TJ 2013.  Soft cover, unpaginated.  Good; wraps show edge and cover wear, some creases and reading creases, small corner bends; binding sound.  Prior owner’s name on first/title page blacked out with marker which has bled through to verso; remainder of interior clean and unmarked; some age spotting.  Illustrated throughout with sepia pictures by Lillian Hoban.  Story of Mildred and Harvey Muskrat, siblings who are fighting and how they become friends again.