Prince Valiant and his army land at Thule and lay siege to the castle with the help of the local peasants. Our heroes have an extra card to play when Dylan is taken hostage during a skirmish. The prince relies on Merlin, Arn, and Rowanne to oversee his design to tunnel underneath the castle and cut off its water supply. But this plan could be ruined when King Willam gets captured by Sinnin while trying to do things his own way.

Guinevere's goddaughter Celeste, the sole ruler of Velfort, is going to be married to King Aramis of Aquatian. Only the trio accompanies Arthur and Guinevere dispite the fact that Aramis was formerly an enemy of Camelot. Once again, Arn is nervous to be amongst so many noble guests at the wedding. When Celeste's cousin Claudio suggests he try some ""liquid courage,"" Arn accepts the offer with disasterous results.