The 'Radiant Clam Washed Ashore' event will run for one week from August 26 to September 2 in Lineage Classic. The event is very simple: visit NPC 'Doyle' at the 11 o'clock direction of Giran Village Square to purchase a Radiant Clam Shell, and as long as you stay logged in with it in your inventory, you will receive 1 'Sparkling Sand Powder'—the event shop currency—every 30 minutes.

Sparkling Sand Powder can be exchanged for various items from Lash, the dog NPC standing right next to Doyle. Available items include 2 Refreshing Red Potions (1 Sand Powder), 1 Hidden Treasure Pouch (30 Sand Powders), 1 Dwarven Gear (1 Hour) (20 Sand Powders), and 1 Fragment of Space-Time: Land of the Abandoned Recharge Stone (20 Sand Powders). Dwarven Gear and Fragments of Space-Time can only be purchased once per day.

Among these, the item worth paying close attention to is the Hidden Treasure Pouch. The Hidden Treasure Pouch gives a chance to obtain one of three items: a Fragment of Space-Time, a Dwarven Gear, or a Saved Treasure Chest. The Saved Treasure Chest can yield top-tier new spellbooks like Counter Barrier, Pollute Water, and Decay Potion, as well as equipment items such as the Ogre Belt and Crystal Gloves.

Since the minimum reward from the Hidden Treasure Pouch is either a Dwarven Gear or a Fragment of Space-Time, using 30 Sand Powders effectively functions as purchasing an ATS recharge item with only about a 10 Sand Powder loss at worst. Of course, considering the probabilities, purchasing ATS recharge stones directly is more efficient for steady gains; however, if you spend a large portion of your time manual hunting and don't strictly need extra ATS recharges, taking a gamble on the Treasure Pouch to try for a jackpot is a worthy option.