Scene 4: Exorcism
Before the expedition reaches the coordinates at the end of its journey, a decision is reached that an exorcism of the syphon entities should be attempted. At least it seems to me that this is the group consensus.
Samuel discovers a quiet little gully which is about a quarter of a mile off the trail. The Behemoth can fit snugly inside the gully without being exposed over the horizon and minimizing the risk of interruption. The walls have shallow sections where the horses can climb in and out with only a little difficulty. Best of all, there is a tiny ley line nearby. It's not close enough for a Ley Line Walker to walk through the party, but it is close enough that the psychics may draw upon its reserve of energy.
For anyone not participating Kalista's experiment, there is a flock of wild turkeys across a field on the far side of the gully. It could make for good hunting.