• 1255 DR [Year of the Raging Flame]
  • Marune the Masked helps found the Shadow Thieves, a guild based in the heart of Mount Waterdeep. »

  • 1262 DR [Year of the Black Wind]
  • The Shadow Thieves, previously a minor band of thieves openly tolerated as a recognized guild, grow in strength and influence throughout Waterdeep. »

  • 1273 DR [Year of the Wagon]
  • The Lord's Rule revives with Baeron and Shilarn Silmaeril, two long hidden Lords of Waterdeep, who slay the Lords Magister. Baeron becomes Open Lord of Waterdeep. The houses of Zoar and Gildeggh are outcast, and the Shadow Thieves are outlawed. »

  • 1298 DR [Year of the Pointed Bone]
  • Lhestyn, as the "Masked Lady", infiltrates the Shadow Thieves Guild of Waterdeep and exposes the guild. Within the span of a bloody week, the Shadow Thieves are either dead or fled from the city due to the Watch and the Lord's agents (like Lhestyn). »

  • 1303 DR [Year of the Evening Sun]
  • The Shadow Thieves begin construction on the training complex that will come to be known as the Assassin's Run. »

  • 1311 DR [Year of the Fist]
  • Zelphar Arunsun is crushed to death by a sorcerous hand of force. The perpetrator remains unknown to the Lords to this day (in truth, he was murdered by a lich of the Twisted Rune as a favor to the Shadow Thieves). Khelben the Elder secretly returns to Arunsun Tower after the death of his son. Over the next ten years, he trains his grandson and namesake Khelben the Younger). »

  • 1358 DR [Year of Shadows]
  • The Shadow Thieves of Amn lose their entire membership of the Shade Council and two-thirds of their assassin members with the death of Bhaal. In response, they undergo a sweeping reorganization. »

  • 1370 DR [Year of the Tankard]
  • Hammer 30 The Rundeen secretly approach the Shadow Thieves for information and access to the colonies of New Amn. Considering the Rundeen a barrier to its ability to work in Calimshan, the Shadow Thieves refuse. »