Day two, After a good night's rest we set off for the 'Tower' meeting Hannah and James at Tower Hill station. After a brief side trip to Spitlefield markets, and a stop for lunch, we arrived. Later while queuing to see the crown Jewels the magic hour of three o'clock arrived, and the temperature once again dropped to near freezing. The sun seems to go down at around half four, and by six it is pitch black. We have a predicted -4 due for tonight, at least the sun had been shining.