What if Vlad Tepes's (aka Dracula's) Wallachia is sent back in time from January 1, 1460 to January 1, 630 with the help of invisible and undetectable Alien Space Bats? How do Vlad and Wallachia react to the events and developments around them, such as the upcoming Byzantine-Muslim wars and the upcoming Slavic invasions of the Balkans?