drop ▁changed ▁dram atically ▁when ▁Naz is ▁took ▁power ▁and ▁converted ▁Germany ▁into ▁a ▁one - party ▁dict ator ship . ▁ ▁In ▁the ▁space ▁of ▁a ▁couple ▁of ▁months ▁political ▁activity ▁( except ▁in ▁support ▁of ▁the ▁Naz i ▁party ) ▁became ▁illegal . ▁▁ ▁In ▁April ▁ 1 9 3 3 ▁Ol ga ▁Kör ner ▁ ▁fled ▁to ▁Czech oslov ak ia , ▁but ▁in ▁July ▁she ▁returned ▁to ▁Germany . ▁ ▁She ▁now ▁became ▁the ▁leader ▁of ▁a ▁( by ▁definition ▁illegal ) ▁resistance ▁group ▁in ▁R ade berg , ▁and ▁then ▁in ▁Chem nitz ▁where , ▁on ▁ 2 3 ▁August ▁ 1 9 3 3 , ▁she ▁was ▁arrested . ▁▁ ▁On ▁March ▁ 1 9 3 4 ▁the ▁high ▁court ▁in ▁Dresden ▁sent enced ▁her ▁to ▁two ▁years ▁imprison ment , ▁which ▁she ▁spent ▁in ▁the ▁Wald heim ▁M ega - j ail . ▁▁ ▁Following ▁her ▁release ▁in ▁September ▁ 1 9 3 5 ▁she ▁remained ▁under ▁close ▁surve ill ance ▁by ▁the ▁police ▁until ▁ 1 9 3 9 , ▁in ▁which ▁year ▁war ▁was ▁res umed . ▁▁ ▁In ▁November ▁ 1 9 3 9 ▁Ol ga ▁Kör ner ▁was ▁re - arr ested . ▁ ▁She ▁spent ▁the ▁next ▁five ▁and ▁a ▁half ▁years ▁intern ed ▁in ▁Rav ens br ück ▁concentration ▁camp , ▁to ▁the ▁north ▁of ▁Berlin . ▁▁ ▁In ▁ 1 9 4 3 ▁she ▁learned ▁that ▁her ▁husband ▁and ▁son ▁were ▁dead . ▁▁ ▁At ▁E aster ▁in ▁