This from the Northants Evening Telegraph....
The route proposed by East Midlands Trains ticket website:
Set off from Kettering Rail Station at 1.35pm on Saturday
Arrive at Derby Station at 2.50pm and leave at 3.42pm
Arrive at Blythe Bridge at 4.21pm and leave at 4.26pm on a bus
Arrive at Crewe at 5.51pm and leave at 6.02pm on a bus
Arrive at Stafford at 7.26pm and leave at 7.37pm on a bus
Arrive at Rugby at 10.03pm and leave at 10.10pm on a bus
Arrive at Milton Keynes at 11.20pm and leave at 4.53am on Sunday
Arrive at London Euston station at 7.41am
Take the tube from Euston station to St Pancras and arrive at 8.01am.
That's an 18 hour journey to cover approximately 70 miles. Good effort.