Book of Secrets is an item in Smite.
Details
PASSIVE - Each time you damage an enemy god with an ability, gain a stack. Each stack grants nothing, but when you upgrade this item, these stacks transfer to the upgraded item. You may only gain one stack every 4s, and can only gain stacks once per god per ability hit. Max 50 stacks.
Book of Secrets
Type
Tier
Price
Desc
Stats
Passive Item
Tier 2
550
Pre-emptively gain stacks for upgrading
+40
Magical Power
+200
Mana