Crystal Wall (Prismatic)

This odd wall can be displaced. Its color and shape change depending on its horizontal position, but it always emits a dim red light. Perhaps, this is a side effect of the g-rays emitted by the crystal apparatus used during the physical examination of recruits.

The crystal walls found in Haunted Tomb can be pushed to Ankrahmun and Port Hope, but not through Explorer Society teleporter as you cannot walk on top of it.