The adventures of Tintin, by the great Belgian artist Hergé, are enjoyed the world over; for the linguist, they offer the added attraction of providing tantalizing glimpses of a previously undocumented language, Syldavian.

Hergé never, to my knowledge, provided any grammatical sketch of this language, and other sources on Syldavian are precious few. I have taken the liberty of laying out the known facts on this fascinating language.