The Isle of Illusion is a children's fantasy book by Emily Rodda.

It is preceded by Cavern of the Fear and followed by The Shadowlands.

The Isle of Illusion continues where Cavern of the Fear left off.

Lief, Barda and Jasmine resume their quest to reunite the three pieces of the fabled Pirran Pipe.

They must collect the middle piece of the pipe from the Auron tribe.