When: From June 1st
Monsters: Below, you can find a list of Monsters in the book and the dates when they will be obtainable in the game.

CHAPTER 1
Firesaur
Greenasaur
Lesaki
Koopigg

CHAPTER 2
Dendrosaur
Dragonian Beast
Utochomp
Shanky

CHAPTER 3
Kimmel's Gift - Epic breeding (June 1st)
Pandalf
Musu
Ao Loong - Dragon Awakening Maze (June 17th)
Semargl - Dragon Awakening Maze (June 17th)
Daganth - Dragon Awakening Maze (June 17th)

CHAPTER 4
Gelotron - Capitalize Breeding (June 24th)
Armole - Monsterwood (June 18th)
Storm Beard - Treasure Voyage Progressive (June 7th)
The Inheritor - Mephisto's Quest (June 11th)
Talany - Secret
Mirak - Rise of the Automata Team Race (May 31st)
Draghar - Dragon Awakening Maze (June 17th)
Yntec - 72 PvP Challenge (June 18th)

CHAPTER 5
Saulot - Ghouls Curse Progressive (June 12th)
Saika - Saika's Path
Mephisto - Mephisto's Quest (June 10th)
Zeighar - Dragon Awakening Maze (June 17th)
Gregorz of Lyria - 72 PvP Challenge (June 18th)
Neobuki - Breeding event
Wyrmlad - Wyrmlad's Tale
Clipeum - Birthday Chest