Saffon Hill Clerkenwell February 4, 2016 at 1000 × 750 in London Series – Clerkenwell and Smithfield – Crime, revolutions and executions ← Previous Next → The site of Fagin’s Den in Oliver Twist. This area was part of the Rookeries that stretched from what is now New Oxford St to Farringdon Road until the slum clearances in the mid 19th century.