User blog:John Breasly/The Sword of Triton's Riddle

"This sword holds far more power than meets the eye, for when a royal bow breaks water, ye shall know her name and that of her enslaved crew."

It means Davy Jones is coming.

This Is How I Know
Far more power than meets the eye: I really could care less about that line

For when a Royal Now breaks water: Davy Jones' ship used to be part of the Royal Navy

Ye shall know her name and that of her enslaved crew: Flying Dutchman's crew is enslaved.