♞ Haunted Knight Pet in Grow a Garden — Prismatic
Haunted Knight is a Prismatic pet from the first part of the Halloween Event 2026, the rare hatch from the Haunted Egg (0.5%). It works on pets, not fruit: it upgrades a pet's mutation at the cost of its age.
Last verified against the Haunted Knight page and the ability data on the Grow a Garden wiki.
Haunted Egg, 0.5%.
📋 Haunted Knight at a glance
| Rarity | Prismatic |
|---|---|
| How to get | Haunted Egg (0.5%) |
| Hunger | 500,831 |
| Ability (wiki wording) | Reins of Destruction: Occasionally haunts a random Nightmare pet, resetting it to age 31 and bestowing the Haunted mutation with a rare chance for Everhaunted. |
| Added | October 17, 2026 (Halloween Event 2026, part 1) |
| Still obtainable? | No: the Halloween Event 2026 ended on November 7, 2026 |
⚡ What Reins of Destruction does
Every 40 minutes 44 seconds at base weight, the Haunted Knight picks a random pet of age 300 that has the Nightmare pet mutation. It resets that pet to age 31 and gives it the Haunted pet mutation, or with a rare 2% chance, Everhaunted.
That's a big trade. The pet loses most of its age, and so most of its weight, in exchange for a different pet mutation. Only keep the Knight out if you're after Haunted or Everhaunted, and unequip any age-300 Nightmare pet you want to keep as it is.
📈 Haunted Knight stats by weight
| Pet weight | Cooldown | Pet age needed | Everhaunted chance |
|---|---|---|---|
| 10 kg | 36:44 | 297 | 2.3% |
| 33 kg | 27:32 | 290.1 | 2.99% |
| 51 kg | 20:22 | 284.7 | 3% |
| 100 kg | 20:22 | 270 | 3% |
The cooldown falls 24 seconds per kilogram, halving to 20 minutes 22 seconds at about 51 kg. The Everhaunted chance caps at 3% at about 33 kg. The age needed drops slowly with weight, to 270 at 100 kg.
⚡ See Haunted Knight's ability at your pet's weight →
❓ FAQ
What does the Haunted Knight do in Grow a Garden?
Every 40:44 at base weight, it resets a random age-300 Nightmare pet to age 31 and gives it the Haunted pet mutation, or Everhaunted with a 2% to 3% chance.
Does the Haunted Knight lower a pet's age?
Yes, to age 31. Only Nightmare pets at the age threshold are affected.
How do you get a Haunted Knight?
It hatched from the Haunted Egg with a 0.5% chance. The Halloween Event 2026 ended on November 7, 2026, and the wiki now lists both the Haunted Knight and the Haunted Egg as no longer obtainable.