First large octavo edition illustrated by George Roux. Publisher's Hetzel binding signed Engel known as "au globe" type 4, lighthouse spine, second cover type Engel "i" according to Jauzac, all edges gilt. Original blue endpapers marginally lightened as usual, spine slightly lightened, small black spots on the second cover, some foxing mainly at end of volume. Sequel to Robur le conquérant, Maître du monde tells of Robur's return to civilization aboard an amphibious vehicle. Un drame en Livonie is a detective novel featuring an innocent man accused of a murder he did not commit in Livonia. Handsome copy.