A level 42 quest for both factions, from level 35.
Unchanged in Forever as far as is known: the text, objectives and rewards below are Classic’s.
Bring Cog #5 to Lotwil Veriatus.
Provided: 
Cog #5
Okay, here you go.
I'm going to be over here... behind cover.
Feel free to join me.
<Without looking up from the shackles, Lotwil holds out a hand and waggles his fingers impatiently.>
The cog, ‹name›, the cog!
Ah, perfect. Stand back while I prepare to make more history!
<Lotwil continues to work feverishly.>
8 quests from level 37 to 45, 19,850 XP in all.
[37]Study of the Elements: Rock
Find 10 Small Stone Shards and bring them to Lotwil Veriatus in the Badlands.
Lotwil VeriatusBadlands
2,850 XP
Find Frost Oil and bring it to Lotwil Veriatus in Badlands.
Lotwil VeriatusBadlands
2,850 XP
[37]Gyro... What?
Bring a Gyrochronatom to Lotwil Veriatus in the Badlands.
After: Coolant Heads Prevail
Lotwil VeriatusBadlands
2,850 XP
[39]Study of the Elements: Rock
Bring 3 Large Stone Slabs to Lotwil Veriatus in the Badlands.
After: Study of the Elements: Rock
Lotwil VeriatusBadlands
3,000 XP
[42]Study of the Elements: Rock
Bring 5 Bracers of Rock Binding to Lotwil Veriatus in the Badlands.
After: Study of the Elements: Rock
Lotwil VeriatusBadlands
3,450 XP
Speak to Lucien Tosselwrench in the Badlands.
Lotwil VeriatusBadlands
[42]This Is Going to Be Hardthis quest
Bring Cog #5 to Lotwil Veriatus.
Lucien TosselwrenchBadlands
Defeat the Fam'retor Guardian and bring Lotwil's Shackles of Elemental Binding back to Lotwil Veriatus.
Lotwil VeriatusBadlands
4,850 XP
Text, givers, objectives and rewards come from the cMaNGOS Classic database (a reconstruction of the 1.12 world), with what Forever changed on top: the game server’s own answers where we have them, else Wowhead’s Forever database. Places are Classic’s, shown on the Forever maps. Quest text © Blizzard Entertainment.
