In 'Return of the Forgotten Numbers', you, a quirky mathematician turned detective, delve into a bizarre world where numbers have come to life. When the numeric entities start disappearing from their realms, panic erupts and chaos reigns. You must navigate through various mathematical dimensions, solving riddles and puzzles that challenge your logical reasoning. Every choice you make alters the numeric fabric of reality, leading to different outcomes and mysterious encounters with personified numbers like 'Complex C' and 'Radical R'. As you unravel the enigma, you'll discover a dark conspiracy that threatens the balance of numerical harmony in all dimensions.