Small World: Seafaring Necromancer!
While not explicitly stated, it seems clear to me that the lake region no longer exists outside of Necromancer Island.

See the example of play on the smallworld-game website.  There is also a statement from the publisher on BGG agreeing to the statement, "Seafaring is hosed"

Reminder - the Necromancer only checks for victory on his own turn, not the other players.  He cannot spawn his way to victory on other players turns.