This is the second edition of the grammar of the artificial language Siwa. This book is one of the most detailed and in-depth descriptions of a conlang or constructed language currently available. Siwa is an apriori constructed language spoken by a people of neolithic european origin who migrated over the Atlantic and settled Quebec more than 4000 years ago before present day native Americans. The book goes into the phonology, morphology, syntax of the language as well as the culture of its speakers. Short texts introduce the reader to interesting features of Siwa culture and language. The book also contains a lexicon.