Night 3: grave ages, coffin code and Festering Felix

Source-checked guide · Reviewed October 25, 2026. Steps are attributed to the references in Sources; this is not our own account playtest.

Save this quest or reward in My Hollow Progress →

Prerequisites

• Access to Floor 3 event content.
• Full original video transcript and key frames reviewed October 25 (Beijing); community-recorded walkthrough, not our account playtest.

Open The Hollow hub →

Step-by-step walkthrough

1. Enter the hub cinema elevator and choose Floor 3. Explore until you reach the Demonology room with a coffin in the middle and eight graves around it. No identical maze route for every run is established.
2. Read the riddle beside the coffin. It asks for the three shortest lives, ordered from youngest to oldest, rather than the earliest birth or death years.
3. Record the symbol, birth date and death date on each of the eight graves. Calculate each lifespan, then sort the eight from shortest to longest. Use the full displayed dates if needed; do not rank by death date alone.
4. Take the symbols of the three youngest people in that order. At the coffin, use the arrows on Grave Lock slots I, II and III to match those three symbols from left to right. The video uses broom, witch and ghost; that is the recorded example, not a verified universal code.
5. Press Open. The recording shows the relic collected and a Got it message. If the coffin does not open, recheck all eight lifespans and the order of the three selected symbols.
6. Carry the relic safely back to the elevator. The video shows the return and reports the Festering Felix badge and avatar reward. Check both your badge list and avatar inventory; opening the coffin alone is not the final step. Inventory delivery was not independently tested on our account.

Troubleshooting

• Do not copy the example symbols without checking your graves. If dates are close, compare full dates rather than rounded ages.
• If the reward is missing, verify you collected the relic and returned to the elevator. Check badge and inventory separately; no universal delivery fix is established.

Helpful tips

• Write a small table: symbol | birth | death | lifespan. Sort by lifespan ascending and use the first three rows.
• No Ticket payment or Plus purchase appears in the recorded puzzle route. This is a maze puzzle, not a redeemable promo code.

Sources

• WaffleTrades — Floor 3 grave puzzle (full video review)community source · Read directly
• Roblox — The Hollow reward badgesofficial source · Read directly