I spy with my little map The Man with the Twisted Lip

A Holmes map by Courtney Kiesecker and Heather Ryan

url: https://a.tiles.mapbox.com/v4/court-kie.npa8nlbk/page.html?access_token=pk.eyJ1IjoiY291cnQta2llIiwiYSI6ImNpZzJsMjBndjFlOG10M2t3M3A5Y2owamMifQ.kDjZPet-JcmZ8NWTG1dJ-g#15/51.5079/-0.1054