The first pyramid spot is hard to find on an otherwise impassable but fairly flat terrain. It furthermore seems to be the only one, so I am not even sure if the access was intentional or a devs glitch. Thewn you have to throw the pyramid a second time near the target, third one gets your pyramid in the passage behind the skull wall. If you use the pyramid in the first spot there is plenty of seemingly empty visible space but still barely enough accessable place for one character - your party joins you at the second or third attempt (can't remember).
Was fun trying.
Regards,
Thorsten
