Complex sentence: As the spirits who could attest to the stories mostly don't communicate with the Uratha, at least not directly, the "truth" is not sure and many myths concerning the origin of the Uratha exist.
Split into simpler sentences: As the spirits who could attest to the stories mostly don't communicate with the Uratha, at least not directly. The "truth" is not sure and many myths concerning the origin of the Uratha exist.