Shares had eased initially on escalating tension in the Middle East, which dealers fear could lead to still higher oil prices. If so, the global recovery could stall. Marks & Spencer, 9 3/4p up at 410 1/4p, then sparked a retail-led recovery with impressive fourth-quarter figures. In sympathy, department store Debenhams jumped 16p to 408p and fashion retailer Arcadia 19 1/4p to 349p. Amid vague rumours that one of its major shareholders has received an offer for its stake, Mothercare rose 12 1/2p to 250p.