Treasure Flask

Treasure Flask is an Epic Pet released alongside in the first half of the In the Shadows of the Dunes update.

Story
''The ceramic flask Centipede Cookie received as a gift during a mission is so antique that it would be a waste to only store water inside. Above all, the Cookie loved the Pet's pride in saying it was worth more than a regular flask. So, some days, the Cookie cherishes it like a treasure- other days, the Cookie hangs it on her waist like a water bottle.''

Trivia

 * Treasure Flask's internal name is "pet0218".