Sly

Initially found in a small hovel in the room accessible after defeating Gruz Mother in the Forgotten Crossroads, slowly succumbing to the infection. Talking to him breaks him out of his daze, and he will return to Dirtmouth to open his shop.

After given the Shopkeeper's Key, more of his goods will be unlocked.

Visiting him after learning all three Nail Arts, he will be found in his storeroom, where it is revealed that he is the Great Nailsage who taught the three Nailmasters and rewards the player with the Nailmaster's Glory Charm. {| class="article-table" width="100%" ! colspan="4" align="center" |

Items
!Icon !Name & Description !Cost !Condition
 * Simple Key.png
 * Simple Key
 * Simple Key

''Simply, a simple key. It will fit a variety of locks, which is useful if you like to poke around in places you don't belong.''
 * Geo.png
 * None
 * Rancid Egg.png
 * Rancid Egg
 * Rancid Egg

''I found this under the counter. Some creature must have laid it here while I was stuck down in the ruins.''

''I suppose you could buy it? I won't miss its sour odour.''
 * Geo.png
 * None
 * Lumafly Lantern.png
 * Lumafly Lantern
 * Lumafly Lantern

''What's more important? A light to guide your way, or a friend who'll stay by your side?''

''Why not both? Take this bright little fellow as your companion and he'll light your way through the thickest darkness.''
 * Geo.png
 * None
 * Health Piece.png
 * Mask Shard
 * Mask Shard

''This old thing? Merely a fragment of something larger. Still, maybe you can make some use of it.''


 * Geo.png
 * None
 * Health Piece.png
 * Mask Shard
 * Mask Shard

''I found another of these. If you look closely, there's some nice engraving work on them.''

''I suspect I undercharged last time, and this is the only one left. It's gonna cost you!''
 * Geo.png
 * Purchased previous Mask Shard
 * Health Piece.png
 * Mask Shard
 * Mask Shard

''You're collecting these, aren't you? Well you're in luck, I found another in my storeroom.''

This is the last one though, so it's priced accordingly. Purchased previous Mask Shard
 * Geo.png
 * Shopkeeper's Key,
 * Health Piece.png
 * Mask Shard
 * Mask Shard

''As it turns out, I do actually have one more of these shards left. Very last one!''

I feel bad charging you so much for the previous shards, especially because it means I have to charge even more for this one. Purchased previous Mask Shard
 * Geo.png
 * Shopkeeper's Key,
 * Vessel Fragment.png
 * Vessel Fragment
 * Vessel Fragment

''A piece of a Soul Vessel. You know, those ghastly looking orb things?''

I don't really like the aura about it, but it's quite rare so I'll have to charge you a high price.
 * Geo.png
 * None
 * Vessel Fragment.png
 * Vessel Fragment
 * Vessel Fragment

''I dug out another of these. Turns out I had a complete set. If they didn't give me the creeps, I'd put the pieces together myself.'' Purchased previous Vessel Fragment
 * Geo.png
 * Shopkeeper's Key,
 * Gathering_Swarm.png
 * Gathering Swarm
 * Gathering Swarm

Do you find yourself leaving a lot of Geo behind as you hurry through the caverns?

This charm will make sure that any loose change finds its way back to you.
 * Geo.png
 * None
 * Stalwart_Shell.png
 * Stalwart Shell
 * Stalwart Shell

''Life in Hallownest can be tough, always taking hits and getting knocked around. This charm grants you more time to recover after taking damage. Useful if you need to escape from a tight spot.''
 * Geo.png
 * None
 * Heavy Blow.png
 * Heavy Blow
 * Heavy Blow

''You enjoy smacking about foes with that nail of yours, right? With this charm equipped, you'll be able to send them flying further with every hit!''
 * Geo.png
 * Shopkeeper's Key
 * Elegant Key.png
 * Elegant Key
 * Elegant Key

''An explorer found this fancy key floating in the waterways of the city far below us. I've not cleaned it.''
 * Geo.png
 * Shopkeeper's Key
 * }



Trivia
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 * According to a livestream Q&A, the development team originally planned for Sly to be a difficult boss who wielded a nail approximately the size of the other Nailmasters'.
 * Sly being more than he seems is repeatedly foreshadowed. For instance, his very first line - "Oro, you oaf... you wield your nail... like a club..." - refers to Nailmaster Oro, he states that he is "usually Sly", and he comments on the player's Nail several times.
 * Sly is the only merchant that requires the player to purchase an item to unlock the next one in the series.