Tales of the North: The Raiding Party (Labyrinth Lord)

From the publishers blurb: Raiding Party is a Labyrinth Lord compatible module published by Black Wyvern Press for 4 to 6 1st to 3rd level characters. The borderland has for over a thousand years marked the northernmost progress of human civilization. The border is not a line marked on a map but a tide advancing and receding. The Borderland is the tidal plane between high and low tide claimed by both wilderness and civilization but held for long by neither.