UnownDex/GS:027

Unown 0x1B (dec:027) is a glitch Unown in Pokémon Gold and Silver.

Unown 0x1B in the Unown Mode of the new Pokédex

This glitch Unown's entry may freeze the game, and (if the player stays on its freeze screen for too long) corrupt the save file.

It has the side effect of giving the player a random number of mail in the mailbox. It may remove the Mystery Gift Trainer House and item.