Games: Details competition no 428 by Tom Lubbock

Details 426 showed part of the walls of the Sala dei Giganti - the Room of the Giants - in the Palazzo del Te, Mantua, the palace of the Gonzaga Court, built and decorated by Giulio Romano, 1526-34. This chamber has an all-round, floor-to-ceiling, trompe l'oeil fresco illustrating the fall of the Titans - a stupendous, almost ludicrous spectacular, with its cast of lumbering muscle-men, halfway between Michelangelo and the Incredible Hulk, whose tumbling bodies are incorporated into an illusion of collapsing architecture and hurtling rocks. The painting was done by assistants, chiefly Rinaldo da Faenza, under Giulio's supervision; as usual, any answer on the right lines would do.

The three winners are: B Barnes, London SW8; P Cousins, St Helens; and M Rubens, Ipswich

In which painting by which painter can you find this stalker?

Answers on a postcard, to arrive by Monday 19 April: DETAILS 428, IoS, 1 Canada Square, London E14 5DL. Three winners will each receive a bottle of champagne