Syd Sixpence is a 1982 children's book by Australian author Joan Lindsay,[1] featuring illustrations by Rick Amor.

Its plot follows an anthropomorphic sixpence coin who is thrown into the ocean, and his subsequent adventures on the ocean floor.

[2] The narrative follows Syd, an anthropomorphic Australian sixpence, who finds himself on the ocean floor.

The book details his search for his friend, Tramline.

While in the ocean, Syd meets a family of winkles who subsist on seaweed, encounters a fish who is a magician, and a performing octopus who kidnaps Syd and forces him into a performing circus, from which Syd must plot an escape.