Simon Calder answers your questions on marathon rail journeys, cheap all-inclusives, Polish city breaks and Concorde Q What’s the best way to get end-to-end rail tickets to travel to and from destinations in Europe ( Sicily in this case) from a single source? Andy H A If you are starting in London, then Trainline is straightforward. On a trip a month from now to Palermo Centrale – the handsome station at the end of the line – the company is quoting £203. The journey, as you might expect, is