Atlantis: Large Treasure Box

 is an epic box available from raids in the Atlantis episode.

Obtained from

 * Weekly missions in Atlantis
 * Atlantis: Crown of Thorns
 * Atlantis: The Throne

Contents
The box will contain three items out of the following:
 * Base Item released to Atlantis
 * Enhanced Son of the Manta
 * Rath Crown
 * Source Mark

Trivia
The box will expire after approximately 24 hours.