The metamorphs turned and ran from the cave into a tunnel. The two boys sprinted after them, dodging debris and geysers of stinking water. The tunnel came down behind them, driving them onwards.

At last, the violent vibrations ceased and slowing finally, the carousel stallion waited for Kyp and Jamie to catch up.

‘Nobody wants you here,’ it told them, as exhausted, the two boys flopped to their knees. ‘At the very least disguise your Elsewhere Lights. You won’t be safe otherwise.’