The Great Ulfe retrieves two chains from the room behind him, which he attaches to the wolves' collars.
"We go to kitchen first," the ogre says. "Get food. Not good for shorties if me 'n Vak 'n Thrag get hungry. Har har!"
He gestures to the south-facing opening down the corridor. You can see the passage opens into a large cavern which the orc community is using as a common area. You see all manner of orc-kin: large warriors, domineering matrons, zooming children, aged layabouts, conniving goblins and more. All are silent before the Great Ulfe.
"We takin' dogs for a walk," the ogre tells them, taking obvious pride in the deceit. "Get food first. Back later. You lot stay." The orcs bow and nod. Their fear of their brutal ogre-king is palpable.
The Great Ulfe guides the party further south to a chamber with a chimney and a large cooking fire. The cooking-orcs there provide him a large bowl of awfully pungent stew, which he and the wolves share noisily, and a sack of dried salted meat of some unrecognisable type.
The ogre now steers the party back to the common area. He instructs the orcs to move all the crates and sacks of supplies that cover the east side of the room. A short passage is revealed, ending in an iron gate stuffed with straw pallets.
The Great Ulfe points at it. "Way down," he says.