Which event in the story is a key detail in holmes’s solution of the case? a. the observation that mr. wilson belonged to the freemasons b. the walk around saxe-coburg square c. the invitation to the police agent from scotland yard d. the violin concert at st. james’ hall

1. saved aronnax from drowning "an incident" 2. speed of the nautilus man-of-war 3. next to captain nemo conseil 4. electricity vigo bay 5. "a coral tomb" 20,000 leagues 6. the nautilus runs aground nemo's "thunderbolt" 7. episodes are connected by aronnax's quarters 8. captain nemo's "bank" cause 9. distance aronnax traveled on the nautilus "a fine death for a sailor" 10. captain nemo sinks for revenge 50 miles per hour