The Sunken Pearl is a Tall Tale in Season Three of Sea of Thieves, which features a crossover with Disney's Pirates of the Caribbean.
This is the second of the five Tall Tales in the expansion, so you'll need to have completed the first Tall Tale, "A Pirate's Life," to begin. In this quest, you and your crew go on a journey into the Sunken Kingdom to search for Jack Sparrow's trusty compass, lost within the walls of the Black Pearl.
Sea of Thieves Sunken Pearl Tall Tale: How to Complete
To begin the quest, simply vote on it at the Castaway's camp, and you'll receive your Tall Tale Quest Book to guide your journey.
Your first step will be to sail all the way to the beacon of blue light coming out from the ocean. Once you're there, dive in and follow the debris down to the ocean floor. Along the way, stop at the bubbles rising from the debris to catch your breath. Keep swimming down along the coral to eventually reach the sunken Black Pearl.
Head to the front of the ship, clear away the debris, and you'll find the Black Pearl Key in the hands of a blue coral creature. Grab it, and use the key to unlock the door to the captain's cabin. There, you'll find the trusty compass.
Follow the compass through a cave until you reach a room with several siren statues. You'll first need to defeat several waves of Ocean Crawlers that spawn in the room; once defeated, they'll drop a Siren Heart. Check the four siren statues around the room and return the Siren Heart to the correct one, which will display a prompt when you approach it.
You'll also need to solve a puzzle. There's a glowing painting of four siren statues on the wall, each holding an item and a trident, which correspond to the four siren statues in the room. For each statue, adjust the position of its trident by attacking it until it matches the painting. Then, attack the large statue holding the shell to check your answer.
If you solved the puzzle correctly, the water will rise, bringing you to the next level of the spire. As you continue your journey upwards, you'll need to repeat this process several times, including defeating enemies, returning the Siren Heart, and solving puzzles. Follow Jack's compass to find which way you need to go.
Once you solve a statue puzzle on the shipwreck, you'll unlock the path to the Silver Blade Key. Climb up the ladder, use a pulley to lower the bridge, and go across it to obtain the key. Return across the bridge and head right toward another wrecked ship, the Silver Blade. Enter and make your way to the captain's cabin, which you can unlock using the key. Inside, you'll find the Chest of Sorrows and a fight waiting for you.
Shoot at the enemies that spawn using cannons; there'll be three waves, and then a final wave where the Kraken spawns. Shoot at the Kraken's head to make it go away. Next, you'll be invited to a final boss fight with the Siren Queen. Defeat her, and then head to a chamber with three siren statues. Destroy all three statues to complete the Tall Tale.
By completing the quest, you'll earn the Silver Blade Cutlass; if you complete all commendations in the questline, you'll receive the Silver Blade Capstan as well.