Invited to a friend's estate to celebrate her engagement, the PC's instead discover mayhem underway. Their friend is dead, and her fiance is being pulled, kicking and screaming, through a magic portal by hulking humanoids. Delayed by a rearguard, the group has just enough time to follow before the portal closes. If they do, they exit at a lake over 20 leagues away, only to see the abductors aboard a boat already underway. Then the portal, the only way home, winks out of existence.