Elven Tower II

Elves are a species that live in harmony with trees, refusing to fell them and actively despising the iron so often used to destroy woodlands. To this end, their buildings do not use wooden frameworks. They instead burn dead and rotten trees, mix the ashes with special soil, and cast spells to create smooth, solid walls incorporating elven steel. Buildings made using these materials are typically minimalistic, and are expected to evoke tranquility and exist in harmony with nature.