On 20th August 1868 - six goods wagons left on the main line rolled into the path of the oncoming Irish Mail. Two of the wagons contained paraffin which exploded enveloping the front carriages in flames. There were no injured passengers. It was either a complete escape or a horrible death. So disfigured were the remains of the 33 bodies brought from the wreckage that identification was impossible in all but three cases and the coffins were simply given numbers [i]. Below: The scene at Abergele, as sketched an hour and a half after the crash. [ii]

References:
[i] BBC Wales/North West website http://downloads.bbc.co.uk/wales/archive/bbc-north-west-wales-abergele-train-disaster.pdf [accessed 08May20]
[ii] (Illustrated London News supplement, 29 August 1868)