This project demonstrates an implementation of the shift/reset control operators used for constructing and evaluating partial continuations. It owes a great deal to the extensive literature on the subject, but in particular toFinal Shift for Call/cc: Direct Implementation of Shift and Reset, by Martin Gasbichler and Michael Sperber, and to Seaside's Flow package, from which I "borrowed" serialisation/deserialisation, and learned how to stitch a partial continuation onto the current stack.