To settle a debt, Allan Quatermain returns to the realm of Bwana Nzige, the bloodthirsty Lord of Locusts, where the hunter was nearly killed years earlier. He must accept Nzige's unpredictable mercies to insure safe passage for himself and the beautiful Victoria Cushing on a safari to the mysterious edge of the known map. When Quatermain can finally no longer stomach the horrors of Bwana Nzige's swathe of conquest, he must make a terrible choice: remain silent and safe, or follow a sense of honor that could sentence himself and his companions to unspeakable deaths lost in a trackless realm of monsters.