Having arrived at Princes Risborough a short while earlier with 20901 and 20905 leading, 7X09 has now reversed and is departing for Aylesbury in a cloud of clag behind 20096 and 20314. This is the delivery train for LUL "S" Stock from Old Dalby to Neasden and its first run of 2013. 23:51, Wednesday 2nd January 2013. Digital Image No. GMPI13526.