On the coming Friday (5th June) I need to travel from Sawbridgeworth (SAW) to Hatfield (HAT), arriving at around 8, then from HAT to London King's Cross (KGX) around lunchtime. I have a 16-25 Railcard. Is this journey valid with an Anytime Day Return, stopping short at King's Cross on the return? National Rail Enquiries is a little bit confused, as the 'Other routes' section shows via King's Cross and Liverpool Street as valid, but when entering including interchange at King's Cross it says multiple tickets are required. Which one is right? It's only £1.50 to use Oyster from Finsbury Park to King's Cross, so it's not a big issue, but obviously it would be handy to not have to get off the train to touch in. Thanks in advance if anyone can shed any light on this!