From Bride of Portable Hole:

The Dread Gazebo
Gargantuan Construct
Hit Dice: 24d10 (132 hp)
Initiative: +0
Speed: 0 ft
Armour Class: 6 (-4 Size, +8 Natural)
Attacks: 1 Bite +24 (melee)
Damage: Bite 3d12+15
Face: 30 ft x 30 ft/10 ft
Special Attacks: Leap attack, Improved Grab, Swallow whole
Special Qualities: Construct, Hardness, Alignmentless
Saving Throws: Fort +6, Ref +6, Will +7
Attributes: Str 30, Dex 10, Con -, Int 4, Wis 12, Cha 14
Climate/Terrain: Any Land
Organisation: Solitary or neighbourhood (2-24)
Challenge Rating: 8
Treasure: Standard
Alignment: Neutral Evil (Usually)
Advancement Range: 25-48 HD (Gargantuan), 49-72 HD (Colossal)

Construct: Immune to mind-influencing effects, poison, disease, and similar effects. Not subject to critical hits, subdual damage, ability damage, energy drain, or death from massive damage.

Alignmentless (Ex): The Dread Gazebo cannot be detected nor affected by alignment-specific effects and spells, even though it is of evil alignment.

Hardness (Ex): The Dread Gazebo retains the hardness of the wood it was constructed of. This grants it a hardness of 5, which reduces all damage dealt to the Dread Gazebo by 5 points, no matter the source.

Improved Grab (Ex): To use this ability, the Dread Gazebo must hit with its bite attack. If it gets a hold, it automatically deals bite damage and can attempt to swallow the foe.

Leap Attack (Ex): The Dread Gazebo can leap up to 90 feet in a single jump to catch opponents unaware. It can attack with its bite attack the same round that it leaps.

Swallow Whole (Ex): The Dread Gazebo can swallow a grabbed opponent of Large or smaller size by making a successful grapple check. Once inside, the opponent takes full bite damage each round as the Gazebo crushes it. A swallowed creature can climb out of the Gazebo with a successful grapple check. The Gazebo can hold two Large, four Small, eight Tiny, sixteen Diminutive, or thirty-two Fine or smaller opponents.