Soft, comforting, but warm and spicy. The setting of Coal Hill is familiar. Not only has the Doctor Who audience been to Coal Hill before, but weve all been to school, in general. It isnt always the safest place, and with the Doctor hunting a berzerker war machine, its both less and more safe than usual. Danny finds out about the Doctor, and distrusts him, but the Doctor distrusts Danny, too. Theres spice, theres familiarity, theres danger.