The Board of Changes

An unassuming board game, oddly similar to a Japanese goban (go board). A portable, folding board with depressed drawers to hold the game pieces. When the party members were in the presence of the board, the pieces formed a symbol in the air:

Wuxing related theories

What it means for the party has yet to be determined, but it is for sure related to them.

The Board of Changes

The Wild and Questionable Adventures of Five Lost Souls KenkakuKnight