From the murky depths of the Shining Sea rises a prehistoric menace who commands a rising tide of invasion to crash over the shores of Faerûn.

Iakhovas has plotted for long, bitter years to regain the powers that were torn from him by an angry goddess. Now, nothing will stand in his way, and the face of Toril will never be the same again.

Oblivious to the growing danger of the undersea civilizations, the surface world is about to awaken to a new horrifying threat from the sea.

The sea war rages up and down the Sword Coast, leaving the busy harbor of Baldur's Gate in flames. Following his mad quest, the evil Lakhovas has found a gateway into the protected waters of the Sea of Fallen Stars, and now no coast is safe from his marauding armies of the deep.

The invasion from the depths of the ocean spills into the Sea of Fallen Stars. Ancient undersea cultures and their human neighbors must unite for the first time in the struggle against the evil warlord Iakhovas.

Iakhovas has been the cause of more destruction than any force since the Time of Troubles, and his true objective has been a mystery... until now.

When a young sailor's journey is complete, and an aging bard's final song is sung, an explosive climax sets all of Faerûn reeling.