This guide provides a complete walkthrough for Valor Mortis Mummy and Daddy.

Background: Why the Mice Ask William for Cheese

The Mummy and Daddy side quest in Valor Mortis begins as a small request from the Mice, Mimi and Agnes, who ask William to deliver some delicious, not-moldy-at-all Cheese to their parents. The request is simple in purpose but blocked by a complication: the parents are in the prison cell next door, and they are not calm enough for William to enter immediately. The quest therefore becomes a short zombie-subduing puzzle rather than a straight delivery task.

Route Start: From the Sewers Lantern to the Mice Nest

The first step is to reach the nest in the sewers. From the Sewers Lantern in the City of Orphans, enter the sewers and use the grapple hook that appears quickly. Continue straight ahead through the sewers until a Volunteer enemy guards a ladder. Defeat that enemy, descend the ladder, and then handle two Grenadier enemies in a confined space. After clearing them, proceed into the next room and interact with the nest to speak with Mimi and Agnes again. That conversation officially starts the Mummy and Daddy side quest.

Calming the Parents: The Music Box Is the Key

The Mice’s parents are the two Shambling Civilian-like enemies in the prison cell beside the nest. They will not allow William inside until he finds something to calm them. The solution is to pass through the door beside the cell, destroy the crates inside, and crawl through a small hole. That hidden route leads to secret sleeping quarters containing a rocking horse, some cheese, and a music box. Interacting with the Music Box plays music that calms the two zombie parents.

Completion and Reward: Deliver the Cheese and Claim the Tiny Whisker Gift

Spoiler Warning: The completion reward is described here.

With the Music Box playing, enter the cell containing the parents. Interact with the plate on the table and place the Cheese the Mice gave you earlier. After the delivery, speak to Mimi and Agnes. They reward William with the Tiny Whisker Gift, a Catalyst Clot that gives 3000 Catalysts upon consumption. On top of that, and assuming the player has spent time interacting with the Mice throughout the journey, they may help with some later endeavours.

Current Stage: A Compact Side Quest With a Clear Payoff

At this stage, Mummy and Daddy remains a short, location-based side quest built around one route, one puzzle, and one reward. The key numbers are the two Grenadier enemies, the two zombie parents, and the 3000 Catalysts reward. Its value is practical: it provides a Catalyst Clot without requiring a long detour, and it reinforces the Mice as a recurring presence in Valor Mortis rather than a one-off request.