Ghosts of Albion is an exciting nationwide treasure hunt run online by BBC Cult, the arm of the BBC that provides web support for programmes such as Dr Who, Buffy the Vampire Slayer and Bagpuss. And we've got one of the key clues.

Chris MaslankaVisit the Ghosts of Albion website to watch the treasure hunt drama unfold and discover how to recover the crown of Charlemagne. The solver will win the £2,000 crown - and a great deal of kudos.

The Oxford Times's very own master puzzler Chris Maslanka has been charged with devising and releasing one puzzle-clue per weekday at various locations over the next five weeks.

The first clue was released on the Bill Heine programme on BBC Radio Oxford on November 1.

Bill Heine said: "A phone-in with Chris Maslanka is exciting and entertaining - the listeners love it. But that's not all. The puzzles he designs really do jog people into more creative patterns of thinking - all of which fits in really well with my programme on BBC Radio Oxford, whose purpose is to stimulate thought and discussion all the better to solve real-life problems."

The prizeThe clue from the Bill Heine programme was this: Girl in container makes sea-going vessel.

The first to solve the daily clue wins an automatic right to attend and participate in the Ghosts of Albion Event at the Prince Charles Cinema in London on December 18.

Besides Chris Maslanka, treasure hunters will have the chance to meet Anthony Daniels, who plays C3PO in the Star Wars films, Emma Sands from Dynasty and The Colbys, and Paterson Joseph from Channel 4's cult comedy series Green Wing.

Chris Maslanka said: "Don't worry if you're not the first to solve the daily clue. If you collect the solutions of the five clues for the week you can uncover a secret location where there will be other opportunities to win tickets.

"And if you're stuck, there is always a message board for treasure hunters to exchange ideas. There are no rules against co-operating with other solvers.

"To solve the puzzle-clue for Friday, November 5, all you have to do is replace each asterisk by a letter in:

*C*U*L*T*

to make a word. Key this word in at the appropriate place on the website at www.bbc.co.uk/ghosts. Oh, and Happy Treasure Hunting!"