Us Summon

[core]

Under moonrise, when you find Us, if you go into the barracks afterward the summon disappears from your hot bar and your spell book. It shows up as a cantrip usable once every short rest, but it's gone after I go into the barracks.

[core]

Oh, I see... for some reason, this isn't a spell... it's an item that gets put on your character. Unlike summoning scratch, you have to have the "Summon Us" brain in your inventory.