John's recording function had subconsciously activated while he made a slow walk around the circle, recording it from every possible angle.
'Well, well, what do we have here. Seems like someone created an altar." He setting foot into the circle just yet. He'd need to download a compendium on magic theory, once he was outside this matrix zero-zone. For now he could only speculate. 'Could be Druids. Those guys can control plant spirits. I wonder if I'd find blood on the surface of the altar.'
But before he entered the circle he looked closely for any signs of footprints indicating a larger group using this site - as a ritual circle for example.
When he had done that, he moved close to the mound, trying to leave as little traces as possible.
When he was on top of it, he engaged the olfactory booster senors to sample the surface.
[spoiler]
Electronic Warfare (Perception):
12d6t5 4 [12d6t5=4, 6, 1, 1, 2, 6, 4, 5, 5, 2, 1, 2]
Sneak (Manover):
15d6t5 4 [15d6t5=4, 1, 4, 2, 2, 2, 2, 6, 2, 1, 2, 6, 6, 5, 3]
Olfactory booster:
15d6t5 3 [15d6t5=4, 6, 2, 3, 6, 1, 3, 2, 1, 3, 3, 1, 3, 5, 2]
[/spoiler]