Pele

 
No - not the footballer and pronounces peel!

A pele or pele tower is a small fortified keeps or tower houses, ususlly built along the borders in the Scottish Marches and North of England.  They were principally intended as watch towers where signal fires could be lit by the garrison to warn of approaching danger. By an Act of Parliament in 1455, each of these towers was required to have an iron basket on its summit and a smoke or fire signal, for day or night use, ready at hand.