Rubuta ci gaba don wannan sakin layi - A watan Janairu da Fabrairun 1937 ta ziyarci Málaga, tare da ɗan jaridar Hungary kuma mai ba da rahoto ga jaridar yau da kullun ta Burtaniya "News Chronicle", Arthur Koestler. Ita da Koestler sun sami mafaka tare da Sir Peter Chalmers Mitchell mai shekaru 72, wanda ya zauna a Malaga "don kare gidansa da bayinsa" yayin da 'yan uwansa suka gudu zuwa Gibraltar. A lokacin yakin Málaga da kyar ta tsere wa sojojin Nationalist masu kai hari. Grepp ya bar Malaga a ranar 6 ga Fabrairu, yayin da Koestler har yanzu yana cikin birni. A ranar 7 ga Fabrairu sojojin Italiya suka mamaye garin. An kama Koestler, aka yanke masa hukuncin kisa a matsayin ɗan leƙen asiri, kuma aka sanya shi a cikin ɗakin mutuwa a Seville. Koyaya, bayan matsin lamba mai yawa na duniya an sake shi daga tsare. Daga Mayu 1937 Grepp ya shafe makonni da yawa a Kasar Basque. Ta ziyarci layin kare sojojin Basque na Jamhuriyar da ake kira Iron Belt, kuma ta fuskanci yakin Bilbao
Ka yi haƙuri. Grepp sau da yawa ta sami kanta cikin yanayi mai haɗari yayin da yake Spain. A lokacinta a Spain Grepp yana fama da tarin fuka. A ƙarshe rashin lafiyarta ta tilasta mata barin yankin yaƙi kuma ta koma Norway.