CITY AND SUBUKB. CHAPTEE I. A DROP IN THE OCEAN. Late in ihe afternoon of a day in August, Alan Euthven passed under Higligate Archway on his way to London. He was coming to the great city to seek his fortune ; behind him — white, straight and dusty, lay the Great North Eoad he had traversed — before him was the goal he desired to reach ; Riid yet, instead of pushing faster and …