These files were for Horizons: Empire of Istaria Istaria: Chronicles of the Gifted. The context was this forum thread.
lair tapestries
lair tapestries
(unzip into the resources_override folder within your Istaria folder)
Ice Crystals : preview : download
Pool of Teeth : preview : download
Symbol : preview : download : psd
Symbol and Runes : preview : download
"Norse Code" font resembles draconic runes seen on cave entrances and portals.