Gentle, charming and deeply philosophical, Toby Mitchell and Verity Clayton's clever mash-up of Lewis Carroll's Alice and Saint-Exupéry's Little Prince is one of those joyous pieces of children's theatre that could happily have an audience made up solely of adults eating from its wonderfully drawn hand.

It takes place in the Queen of Heart's Rose Garden where Mitchell, as the Little Prince, sits drawing sheep to keep the weeds down on his home planet, asteroid B-612. He soon has his audience of over-fives drawing more for his flock, as he wanders off into Saint-Exupéry's clever examinations of the contradictions of adult life.

The appearance of Clayton's sympathetic Alice brings another level of logical perambulation, which puts delicious questions into its young audience's heads while letting just enough slip right past for the adult's comprehension.

The result, as the Prince has to explain himself to the inquisitive Alice, is a show that gets further inside both stories than many other much more sophisticated pieces –there is no drawing back for simplicity's sake. A treat for fans of either book.

Pleasance Courtyard, until 18 Aug (not 9), 1.30pm, £8–£9 (£7–£8).