I've barely read anything there, so all I can recommend is Hamlet, Huck Finn, Tom Sawyer, The Merchant of Venice, or the Edgar Allen Poe.
And if reading on a monitor doesn't bother you, The Metamorphosis by Kafka is really short and always a jolly good time. http://www.online-literature.com/franz-kafka/metamorphosis/1/
EDIT: Nevermind. It's really short though.












