Teodor Parnicki's letters from the collections of the Raczynski Library in Poznan document the writer's connections with Great Poland. The first letters date back to the end of the thirties when Parnicki strived to organize in Poznan his lectures on Russian literature and the historical novel. The remaining ones written in the writer's last years address to Wydawnicto Poznanskie which initially made a decision to publish Parnicki's juvenile piece, i.e. a novel Count Julian and King Roderick (Hrabia Julian i krol Roderyk), and followed with a contract for writing three novels, two of which (Dary z Kordoby and Kordoba z darow ) after 10 years of his literary experiments make up the writer's return to writing purely historical novel. The letters shed light on some interesting spects of Parnicki's craft and show his struggle in his last years against the difficult historical matter, worsening the health condition, and increasing loneliness.