“This book is dedicated to every student who has gazed through a window and wished that she or he could escape outdoors instead of being trapped inside a classroom.”
NO MAJOR SPOILERS
A lost world shrouded in mists where animals and birds live in happiness and where humans are invisible even as they walk among them.
Kamla, Pradeep and Manohar fall out of an oak tree into this world, a kind of parallel universe to the one they inhabit around Mussoorie.
There they stumble into the modern day version of Linnaeus, very appropriately a Bengali professor who has been lost in this secret sanctuary for three years and who goes around spouting the Latin names of the local flora and fauna.