The Ritual Gate entry reads as follows:
PRD, Lurker in Light wrote:
Ritual Gate (Su) By sacrificing one or more humanoid victims, a lurker or group of lurkers can create a gate to the Material Plane, one of the Elemental Planes, or the realm of the fey, either to return home or to conjure allies. Creating a gate for travel requires the sacrifice of five victims—the gate created remains open for 1 minute. Creating a gate to bring allies to the Material Plane requires one sacrifice for every HD of the creature intended to pass through the gate (so five sacrifices can bring a lurker or a Medium air elemental, eight can bring a Large earth elemental, and so on). The sacrifices do not need to be simultaneous; as long all sacrifices occur at some point during the hour-long ritual, the magic continues to build until it reaches the required total.
Unfortunately, the numbers don't match up with their examples. A lurker has 8HD and a medium elemental has 4. Only the Large elemental example is correct.
Is the statement of "one sacrifice per HD" correct and the examples wrong, or is there another way of counting?
