Other interested parties...
Mr Edward Rookwood, an explorer and inventor, (Ian)
Miss Harriet Petheridge, a former governess turned adventuress, (Jill)
Mr Cyrus Grant, inventor of the Ether Propeller (a Non Player Character)
Mr William Sykes, a shifty looking ex-thief, (a deceased Non Player Character)
Roberts, a manservant in the employ of Sir Henry, (a Non-Player Character)