Castle BonkA Castle Defense Game

Day 12 of 30 · Whisperwood

Day 12: The Hollow Grove

Day 12, “The Hollow Grove”, is the 6th day in Whisperwood. It happens at dusk with fog weather, and 38 enemies march in over 4 waves. The battle lasts about 3:45 on Normal.

Captain Bramble says: “The trees are whispering... Old Mother Hollowbark is awake!”

Day 12 of Castle Bonk: Fog dusk in Whisperwood12DAY 12 · WHISPERWOODTHE HOLLOW GROVEFog · dusk · BOSSWaves: 4Foes: 38Time: 3:45
Foggy! We can't see far. Watch closely.

What it looks like

Dusk in the Hollow Grove. Fog rolls between the roots, and a giant hollow tree with a swinging lantern fills the right edge.

Weather: Fog

Enemies beyond 55% of the field show only as silhouettes with no HP bar, until they come closer or step into torch, Lighthouse, or fire light. Gloom Wisp and Mushroom Shaman glow through fog. Flyers are above it and always visible.

Foggy! We can't see far. Watch closely.

What's new today

BOSS: Old Mother Hollowbark.

First appearance: Old Mother Hollowbark.

How to win Day 12

Break her lantern to stop the regen. Oil and Fire Arrows. See the phase script.

  • Against Goblin Grunt, the best picks are Balcony Archers or Footman.
  • Against Bat Swarm, the best picks are Balcony Archers or Stormcaller.
  • Against Wolf Rider, the best picks are Cryomancer or Pikeman.
  • Against Shieldbonk Goblin, the best picks are Crossbow Tower or Boiling Oil or Knight.
  • Against Mushroom Shaman, the best picks are Pyromancer or Knight or Ranger.
  • Against Moss Troll, the best picks are Boiling Oil or Pyromancer.
  • Against Slinger, the best picks are Balcony Archers or Knight or Ranger.
  • Against Scamp, the best picks are Cryomancer or Footman.
  • Against Battering Ram, the best picks are Keep Catapult or Boiling Oil.
  • Against Old Mother Hollowbark, the best picks are Boiling Oil or Pyromancer.

Boss: Old Mother Hollowbark

The Hollow Grove at Dusk in Fog, with the giant hollow tree and her swinging lantern on the right. The fog makes torches, the Lighthouse, and fire arrows matter.

Read the full Old Mother Hollowbark boss guide for every phase and the best counters.

When you win, "Fine. You win." The bedtime-trumpet deal (story). Fight estimate 1:50, threat 60.

The waves

Wave Pause before Who comes
1 6 s 9× Goblin Grunt, 6× Bat Swarm, 1× Wolf Rider and 3× Shieldbonk Goblin
2 13 s 1× Mushroom Shaman, 1× Moss Troll, 3× Slinger and 5× Scamp
3 13 s 1× Battering Ram, 2× Wolf Rider and 5× Goblin Grunt
4 (big wave) 15 s 1× Old Mother Hollowbark

The pause is the quiet time after the wave before finishes arriving. You can call the next wave early for bonus gold.

Enemies on Day 12

Unlocked after Day 12

Mage Academy (Mage academy), Pyromancer (Unlock fire mage), Tower Slots III, Endless: The Long Watch