"Der Pandur" was a sequel to "Der Haiduck". The final part of this trilogy, focusing on the Wallachian Revolution of 1848, was burned, by accident, before it could be published. Dumbravă never returned to it, but, by 1918, was conceiving of another novel, tentatively called "Book of Sibyl". She still registered success as an amateur musician. In 1913, at Elisabeth's Peleș Castle, her piano-playing accompanied two famous Romanian violinists, George Enescu and Dimitrie Dinicu.