From Pathfinder Society Scenario #1-18: Lodge of the Living God, which isn't enabled.

Immature Giant Gecko

CREATURE 0

Perception +5; low-light vision

Skills Acrobatics +6, Athletics +3 (+7 to climb), Stealth +4

Str +2, Dex +3, Con +1, Int -4, Wis +2, Cha -2

Uncanny Climber

A giant gecko's feet allow it to climb virtually any surface, no matter how slick or sheer. If a giant gecko attempts an Athletics check to Climb and critically fails, it gets a failure instead.

AC 14; Fort +4, Ref +8, Will +3

HP 10

Speed 30 feet, climb 30 feet

Melee Jaws +6 (unarmed), Damage 1d6+2 piercing

Pathfinder Society Scenario #1-18: Lodge of the Living GodOGL