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“There’s no more caustic material in all of the basin than bittertide hydra sputum. I’ve got special containers to collect just such a thing for Archmage Pentarus’ studies. Now all I need is a brave, um… collector. You look like a hardy, adventurous Warrior. How’d you like to make a bit of money and aid Dalaran’s cause at the same time?
All you need to do is take this container with you to Bittertide Lake, to the southwest. Engage the hydra and use the container to sample the sputum they shower you with.”
-Colvin Norrington
Colvin Norrington at Dorian’s Outpost wants you to take 5 Hydra Sputum Samples and kill 5 Bittertide Hydra.

You will be able to choose one of these rewards:
Upon completion of this quest you will gain:
Quest Giver: Colvin Norrington — Dorian’s Outpost, Sholazar Basin [42, 28]
Objective: Collect 5 Hydra Sputum Samples using the Sample Container AND kill 5 Bittertide Hydra. (Dual objective.)
Quick Facts
Walkthrough
Pet Class Warning (Critical)
Efficiency Tips
Easter Egg: The Lost Hatch
Lore Context
Like Reagent Agent, this quest is part of Colvin Norrington’s side mission collecting reagents for Archmage Pentarus in Dalaran. The Kirin Tor’s interest in Sholazar’s exotic flora and fauna extends beyond academic curiosity; the basin’s unique ecosystem, preserved by the Titans through the Waygate and Pillar system, produces reagents found nowhere else on Azeroth.
Bittertide Lake gets its name from the salt water flowing in from the North Sea, making it a rare brackish lake. It drains over Bittertide Falls (approximately [46, 46]) into the River’s Heart below.
Cross-Expansion Connection
Explore Sholazar Basin’s hidden easter eggs, lore mysteries, and connections across Warcraft history in Vikstone’s Sholazar Basin Chronicles, along with the complete quest storyline.
Vikstone's War JournalColvin needed another favor. “There’s no more caustic material in all of the basin than bittertide hydra sputum. I’ve got special containers to collect just such a thing for Archmage Pentarus’ studies. Now all I need is a brave, um… collector.”

The hesitation in his voice should have been warning enough.
“All you need to do is take this container with you to Bittertide Lake. Engage the hydra and use the container to sample the sputum they shower you with.”
Let me be clear about what this meant: fight hydras while they sprayed caustic venom at me, and instead of dodging, hold up a container to catch it.
The hydras were happy to cooperate with the spraying part. Less happy about dying afterward. The sputum burned through leather, etched metal, and left my skin feeling like I’d bathed in nettles. Got Colvin his samples and killed his hydras. Regretted every moment.
I returned to Colvin smelling of acid and self-pity.
“Wonderful! Here’s your payment, as agreed.” He handled the container with extreme care, which seemed unfair given what I’d gone through to fill it. “And, uh, a bit of advice: you might want to enjoy long, hot baths the next few days if that ‘burning sensation’ persists.”
Colvin’s reagent list was finally complete, and with Dorian’s Outpost running out of errands, a different kind of problem was developing in An Embarrassing Incident.