Silksong’s The Slab: A Prison Break Guide to Keys, Cold, and the First Sinner

As of 2026, The Slab remains one of Hollow Knight: Silksong’s most memorable detours: a freezing prison full of stolen gear, rude keys, and one very stubborn boss. A player does not stumble into it by accident. The Slab has a nasty habit of taking everything away first and explaining nothing until much later. Here is the full route, from capture to the First Sinner, with the important keys, rewards, and survival tricks in plain language.

Getting Captured Is the Point

To reach The Slab, a player needs solid progress on the Flea Caravan quest. That means moving the caravan into Greymoor, gathering more fleas so it moves again, and fighting Moorwing if that fight was skipped. Freeing the thief in Deep Docks also matters. After that, bulky armored flies carrying cages begin to spawn, including one at the now-empty Flea Caravan spot in Greymoor. Do not dodge and kill it immediately. Let it capture Hornet. If the cage and silk binding work, the screen fades to black, and the prison break begins.

No Nail, No Cloak, No Shame

Hornet wakes up stripped of her nail and clothes. No floating, no tools, no combat strength. She can still punch, dash, and cling to walls, which is enough to start trouble. The nearby doors are locked, so head down and left. Above another locked door is a very breakable ceiling. Break it, climb through, and find the thieves who stole the gear. Outside is bitterly cold, so keep moving and enter the first door on the right. The enemies inside are pushovers. Drop through the floor hole, and Grindle appears behind a door. He is absolutely no help, but freeing him is funny enough to count as a prerequisite.

Key of Indolent

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