What time is it? It's time to show some love for Marshall Lee the Vampire King, the gender-swapped version of Marceline, with this awesome Adventure Time adult t-shirt. This black, standard fit shirt is made from 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Adventure Time Marshall Lee Vampire King T-Shirt style. Check back often for some of our new Adventure Time clothing and other Adventure Time merchandise at great prices only at Animation Shops.