Grants 40XP
The item id for Frost Book in unturned is 36123. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Consumeable
Quality_Min: 100
Quality_Max: 100
Quest_Rewards: 1
Quest_Reward_0_Type: Experience
Quest_Reward_0_Value: 40