The hero players in my group believe that once they complete training in the secret training area at Gray's Vale, they may immediately return to their home port as if they had completed the final level of a dungeon (via the portal). As there are no portals and no glyphs of transport at secret training areas (at least none that I can find in the rules), I think not.
Am I missing something? This is a big issue for us as it is a 4 game-week slog back to Garnott and my lieutenant is laying siege (actually breaking the chains binding the beast) at Cerridor Sea.