From the Mixed-Up Files of Mrs. Basil E. Frankweiler What is the main problem in E.L. Konisburg's 'From the Mixed-Up Files of Mrs. Basil E. Frankweiler'? How is it solved? Asked by TeeHee2 14 years ago 8/9/2011 11:44 PM Last updated by anonymous 10 years ago 11/13/2014 1:59 AM