| Category | Islands |
| Location | Galathien |
| Climate | temperate |
| Map | Adellum |
Tarelcil is a sizeable island situated within the Galathien Sea. In a region where the fabric of the Web of Magic is comparatively tenuous, arcanists have long made pilgrimages to Tarelcil to avail themselves of the easier spell casting conditions. One of the most awe-inspiring locations on the island is the Prism of Merioss, which serves as the headquarters of the Arch-Mages of Merioss.