I want to book a train for 2 persons, one way, London to Edinburgh in May. I am 12 weeks out from my date. I looked at The Train Line site and found the fare to be substantially higher on May 1 than it would be just 10 days from now(both searchs same time of day, same day of week). Am I too early to get a good fare? Do rates go up in Spring? Also, dumb question #1, if I enter 2 for # of passengers does the fare come up for two tickets? We want to get 1st class seats in order to see what I hope is lovely English scenery. And I know this is subjective, but, dumb qustion #2, is the first class ticket worth it for this trip?