Ice King's Warning

I am the Ice King
And I warn thy fleet
Do as I say or face swift defeat
The Ebenezer fortress travels for you
To seize your ship and kill your crew
On ice we flow faster than your sails
We’ll catch you and bleed you to extract your wails
Abandon your vessels and take to the shore
Leave your treasure and tread water no more
Heed my warning with utmost care:
If upon the water again you dare
We shall find you, of that be sure
And you’ll be doomed by the Ebenezer