Hey, Dead, there's no way that Vincent could get to Kynesgrove in less than twelve hours - it's pretty much a two-week journey, as we're doing this the more realistic way - and before anyone else get's worried, we won't be doing the journey in painstaking detail. We'll skate over the various days, maybe put in a few posts about setting up camp, and *ahem* ''character bonding'' - and swiftly get on to killing our first dragon together.
So, there's no point in Vincent leaving the group - he's a pretty old vampire, all he has to do is drink some blood during the journey, and the sun shouldn't do all that much damage to him.