Algernon is extra-clever thanks to an experimental brain operation so far tried only on animals. Charlie eagerly volunteers as the first human subject. After frustrating delays and agonies of concentration, the effects begin to show and the reports steadily improve: "Punctuation, is? fun!" But getting smarter brings cruel shocks, as Charlie realizes that his merry "friends" at the bakery where he sweeps the floor have all along been laughing at him, never with him. The IQ rise continues, taking him steadily past the human average to genius level and beyond, until he's as intellectually alone as the old, foolish Charlie ever was--and now painfully aware of it. Then, ominously, the smart mouse Algernon begins to deteriorate...

With more than five million copies sold, Flowers for Algernon is the beloved, classic story of a mentally disabled man whose experimental quest for intelligence mirrors that of Algernon, an extraordinary lab mouse. In poignant diary entries, Charlie tells how a brain operation increases his IQ and changes his life.

As the experimental procedure takes effect, Charlie's intelligence expands until it surpasses that of the doctors who engineered his metamorphosis. The experiment seems to be a scientific breakthrough of paramount importance-until Algernon begins his sudden, unexpected deterioration. Will the same happen to Charlie?