This is a combined translation of parts of two Runequest source books: The Book 1 from Elder Secrets of Glorantha and a version of Gloranthan Bestiary compressed in 32 pages. The Book 2 from Elder Secrets is translated as another book named Gloranthan Vanhat Rodut.
Translation from back of the book:
Since the creation of Glorantha many creatures have walked it's surface and many secrets still hide inside it. For over 16 centuries brave researchers have searched these. You hold the product of their work.
The creatures and secrets of Glorantha (Gloranthan olennot ja salaisuudet) includes:
CREATURES: 73 creatures species from Ahmatti to Öiviir, including their game stats and descriptions.
SECRETS: Monsters and horrors, such as Lunar Crimsom Bat, unique secrets like Paasi (The Stone) and Egg of Eranglos Karastombar, Inaccessible Glorantha like Dorastor, Secrets of Dragonkind, Magical Geology of Glorantha, Sky and Weather of Glorantha and information about Heroquesting.