Caught me at the right time, sat by the book. There are three races Human, Dwarves and Warped Ones (like Slaine). The classes are Druid, Noble Warrior, Thief, Tribal Warrior and Witch. Dwarves have no Earth Magic, so rarely become Druid, Witches and can't Warp. There are lots of references to blood magic and powering magic through sacrifice. There are flint and iron weapons, iron weapons can bend in battle, and need to be sharpened between fights.
Dwarves are about 4 to 4.5 feet tall, so not that small as to be a different size category.