The Temple of Elemental Evil

This adventure pack costs 650 Turbine Points and contains two quests: Both are level 7 on heroic difficulty and level 30 on epic difficulty, and grant favor of The Gatekeepers. Quests are narrated by renowned actor Wil Wheaton.
 * Temple of Elemental Evil Part One
 * Temple of Elemental Evil Part Two

Mysterious altars
The quests feature randomly spawning mysterious altars. Clicking the altar buffs your character. The buffs act like the classic ship buffs in that they cannot be dispelled, persist though rest and quest/wilderness entrance, disappear on death, and have an 1 hour duration.
 * Defense: PRR, MRR, HP
 * <>: elemental absorption, additional elemental damage on attacks and spells, additional spell power
 * Offense: Melee and Ranged Power