Nazjatar Blood Serpent – Secret Mount
Nazjatar Blood Serpent is a Secret Mount added in Battle for Azeroth. This serpent is a red recolor of the Riddler's Mind-Worm Secret Mount from Legion.
Abyssal Fragments
First you'll need to collect 20 Abyssal Fragments, which can drop from any creature in Kul Tiras and Zandalar. These items are not soulbound so you can also purchase them on the Auction House.
Once you've collected all the fragments, combine them at the Altar of the Abyss to create the Abhorrent Essence of the Abyss. The altar is found at the end of a cave hidden behind a waterfall in Stormsong Valley.
/way Stormsong Valley 73.6 23.3 Altar of the Abyss (cave entrance)
/way Stormsong Valley 73.6 21.8 Altar of the Abyss
Adherent of the Abyss
Next you will have to summon the Adherent of the Abyss by using the Abhorrent Essence of the Abyss in front of The Abyssal Flame, which is also located in Stormsong Valley at Warfang Hold.
The Adherent of the Abyss might be hard to solo for undergeared characters in Battle for Azeroth, so make sure to bring a friend to help out.
/way Stormsong Valley 46.6 36.2 The Abyssal Flame (cave entrance)
/way Stormsong Valley 45.1 36.8 The Abyssal Flame
The Adherent will drop the Nazjatar Blood Serpent for the summoner only, and the Aether of the Abyss for everyone in the party.
Shath'Yar Translations
The Adherent of the Abyss will shout several sentences in the Shath'Yar language:
Adherent of the Abyss says: [Shath'Yar] ZUQ THYZZ Zuq ag'xig qwor ni ak'agthshi oou kla'kar zuq nuq n'zoth shfk
Adherent of the Abyss says: [Shath'Yar] I zz AGTH I plahf zuq yrr nuq ywaq on'ma lwhuk zaix za sk'woth'gl uhnish
Adherent of the Abyss says: [Shath'Yar] Shuul og i uull ryiu hnakf wgah iiyoq shg'fhn yrr zuq
These have been translated using a Violet Truffle:
Adherent of the Abyss says: [Shath'Yar] YOU FOOLS! You cannot hope to comprehend the power you now trifle with!
Adherent of the Abyss says: [Shath'Yar] I am FREE! I thank you... and now your souls shall sate my fathomless hunger.
Adherent of the Abyss says: [Shath'Yar] There is a fate much worse than death waiting for you...