The House of One Hundred Clocks by A.M. Howell
JUNE, 1905. Helena and her parrot, Orbit, are swept off to Cambridge when her father is appointed clock-winder to one of the wealthiest men in England. There is only one rule: the clocks must never stop.
But Helena discovers the house of one hundred clocks holds many mysteries; a ghostly figure, strange notes and disappearing winding keys... Can she work out its secrets before time runs out?