The Gatekeepers are said to be the guardians of gates/portals which connect the material/planar to other planes of existence. The party believes there are four gatekeepers, maybe more.
Lord Elkas Loyalar informed that party of two of these Gatekeepers:
1: Adoril, known to him as Lord Adoril Serpenthelm, a powerful wizard granted a lordship by the king of Galdria
2: Thakas Millstone, the Dean of the wizard college Swiftar attended in his youth.