Nifft the Lean, a spirited and wily thief, embarks on a novel-length adventure in The Mines of Behemoth. His long, rawboned, sticky fingers and stark length of arm lead the way down to the vermiculous grottos of the demon sea, to stand beneath the subworld's lurid sky and battle monsters who seem the spiritual distillation of human evil itself.

His treacherous journey is made just a touch less daunting with the axe and mace wielding Barnar Hammer-Hand by his side. Even if his colleague was the catalyst for the whole trek, which finds them navigating the seas around the Angelheim Islands, roving the plains of Latter Kairnlaw, and negotiating the quartz-lined sap mines of the Broken Axle Mountains.

Barnar’s nephew, Costard, the owner of the mines, is down on his luck. His workforce has dwindled, and financial ruin is imminent. Nifft and Barnar agree to work the mines and rescue his company.

Though the mines may hold a king’s ransom in saleable sap, extraction is a tricky endeavor. It isn’t the mine walls that secrete the lucrative substance; offspring from the giant Behemoth beasts that inhabit the mines require siphoning for this most precious of bodily fluids. It takes specialized equipment, a steady hand, and even camouflage to avoid detection.

A chance encounter with a hivery owner drives them further in search of The Royal Brood Chamber hidden deep within the cavernous mines. Survival requires outrunning winged, parasitic tubeworms, braving the Forager surge, and captaining the Bounty on its maiden voyage to freedom.