Pokemon HeartGold & SoulSilver- Lyra; Unknown Creator :( Yeah I can't provide a link for this either. :P

Unown Pokédex: stats, moves, evolution & locations

Pokemon HeartGold and SoulSilver :: The Ruins of Alph

Mavin Pokemon Card Heart Gold Soul Silver Unown 54/123 Reverse Holo

Unown Mode - Bulbapedia, the community-driven Pokémon encyclopedia

How To Catch All The Unown

Ruins of Alph - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon HeartGold and SoulSilver - The Cutting Room Floor

I wonder if Legends will explain the connections between Unown and Arceus. Or just explain Unown in general a bit more, cause those things seem to be able to friggin alter reality.

Category:Pokémon HeartGold & SoulSilver, SiIvaGunner Wiki

Pokemon Gold Walkthrough, PDF, Nintendo Franchises