just say (once one drinks it) that they see smthing written on the side of the bottel, now that it is empty. the PC who swallowed the potion will no doubt hold it up to see whats on the bottle...then tell the other PCs that somthing is reflecting off the PCs face.
just say (once one drinks it) that they see smthing written on the side of the bottel, now that it is empty. the PC who swallowed the potion will no doubt hold it up to see whats on the bottle...then tell the other PCs that somthing is reflecting off the PCs face.
Or just make the potion poison and kill them all.