Whakaotihia te rerenga e whai ake nei: Mai i te tau 1921 ki te 1929, i mahi a Reiss i Uropi ki te Hauauru, ina koa ko Berlin me Vienna. I Berlin, ko o ratou manuhiri whare ko Karl Radek me, ex-wahine o Fedor Raskolnikov (he rangatira Naval i tuhi i te
Te whakakeke o Kronstadt). I Vienna, ko nga hoa ko Yuriy Kotsiubynsky, Alexander Schlichter, Angelica Balabanov, Paul Ruegg, Ivan Zaporozhets, Alexander Lykov, me Emil Maurer. I Amsterdam, i mohio a Reiss me tana wahine ki a Henriette Roland-Holst, Hildo Krop, Princess Juliana o Netherlands, "Porofesa Carvalho", "H. C. Pieck" (Henri Pieck), me te mea nui rawa atu ko "Henricus" ko "Henryk Sneevliet" (Henk Sneevliet). I tenei wa ano, i kawea mai e Richard Sorge a Hede Massing ki Reiss mo te whakangungu.