ne large undead 

Perception +27; darkvision, lifesense [object Object] feet, scent (precise) [object Object] feet

Languages Aklo

Skills Acrobatics +29, Athletics +30, Stealth +29

Str +7 Dex +8 Con +6 Int -2 Wis +4 Cha +3

AC  37; Fort +26, Ref +30, Will +24

HP 280, negative healing; Immunities disease, paralyzed, poison, polymorph, unconscious

Desiccation Aura (aura, divine, necromancy) 30 feet. A cloud of choking, acrid dust swirls about the hollow serpent, draining moisture from any enemy within. A creature entering the aura or starting its turn in the aura must succeed at a DC 34 Fortitude save or become enfeebled 2 and slowed 1 for 1d4 rounds (2d4 rounds on a critical failure). A creature that succeeds is temporarily immune for 24 hours.

Divine Guardian [R] Trigger An ally within the hollow serpent's reach is attacked; Effect The hollow serpent interposes a coil of its body or tail between the ally and attacker. The triggering attack targets the hollow serpent instead of the original target.

Speed 50 feet, climb 50 feet; freedom of movement

Melee [>] jaws +30 (reach 10 feet), Damage 4d10+15 piercing plus Improved Grab

Melee [>] tail +30 (agile, reach 15 feet), Damage 3d10+15 bludgeoning plus Improved Grab

Divine Innate Spells DC 35; 7th vampiric exsanguination (drawing in moisture rather than blood); Constant (7th) freedom of movement

Constrict [>] 1d10+7 bludgeoning plus drained 1, DC 36

Swallow Whole [>] Medium, 4d6 negative plus drained 1, Rupture 32

Slithering Strike [>] The hollow serpent Strides or Climbs and makes a jaws Strike at the end of that movement. If the hollow serpent began this action hidden, it remains hidden until after this ability's Strike.

Book of the Dead, page 114.