1. Ruso is “thanked by nobody,” according to the list that opens the novel (v). Why is Ruso unappreciated at the end of the novel? Has he earned this thanklessness? Why or why not? 

2. What is the significance of Tilla’s gift to Ruso at the beginning of the novel? What conflicts arise from this gift? Does Ruso seem to understand Tilla’s reasons for giving him money? 

3. What are some attitudes toward the medical profession among the characters of Terra Incognita? Who seems to have the least faith in Roman medicine: legionaries, Batavians, or local tribes? 

4. What did Ruso expect to see at the edge of the Roman Empire? Why does he feel “a faint slump of disappointment” when he views the border (58)? Does the border meet any of Ruso’s expectations? Why or why not? 

5. When he first volunteers to conduct a postmortem report on Felix’s body, Ruso thinks confidently, “he was beginning to get the hang of this politics business.” (65). When does Ruso’s inability to juggle medicine and politics become apparent? What political skills does he lack? What are his professional strengths? 

6. Discuss the character of Thessalus. What are the doctor’s complex motives for confessing to Felix’s murder? Is his deception justified? Why or why not? 

7. Aemilia says of Ruso, “And he is rather good-looking, in a cross sort of way.” (283). Imagine and describe Ruso’s physical appearance, based on Aemilia’s comment and his character traits. 

8. Romantic problems and family troubles abound in Terra Incognita, on both the Roman and British sides. Which characters seem to suffer the most from both difficulties? Which characters are free of romantic and family dilemmas? 

9. Describe “Catavignus’s vision” of prosperity for Coria (377). What stands in the way of that vision? Which of Catavignus’s actions seem motivated by personal gain, and which by his concern for the future of his family and community? 

10. Ruso never finds out if Metellus and Catavignus were working together to “help clear up undesirables” in Coria (370). Why does this question remain unresolved in the novel? Does it seem likely that the two men collaborated? Why or why not? 

11. Tilla says to Ruso at the end of the novel, “But I do not want to marry you because you are foreign and you do not trust me.” (382). Under what circumstances could Ruso and Tilla ever marry? What might their marriage be like? Do you think it ever happen in this series? Why or why not? 

12. Terra Incognita switches between Ruso’s and Tilla’s perspectives. What is the effect of their divided narration? Give an example of an incident narrated from both points of view. How do Ruso’s and Tilla’s perspectives differ? How are they similar? 

13. The events of Terra Incognita take place over the span of a single week. How does Downie pack so much action into such a short period of time? Which day of Ruso and Tilla’s adventures feels the most eventful? 

14. Terra Incognita means “unknown land” in Latin. What remains “unknown” by Ruso about Britannia? In what ways is the expanding Roman Empire a “terra incognita” for Tilla?