Books and slot counts

Slot count follows your equipped Curios spellbook.

• No book: 3 slots
• Equipped book: the bar grows to that book’s max spell capacity
• Packed book spells lock into the leading slots. They cast from the book and cannot be moved in the equip screen
• Remaining slots are yours for player scrolls

If the book shrinks or locks over a scroll slot, those scrolls are returned to your inventory (dropped if full).

With Spell Codex, action bar slots still follow the equipped empty Curios spellbook (default 3 with no book). Wide books and long school lists scroll horizontally in the Codex UI.