This allowed the partly molten , high-pressure gas- and steam-rich rock in the volcano to suddenly explode northwards toward Spirit Lake in a hot mix of lava and pulverized Destroying older rock , overtaking Motion the avalanching face .

Charles rallied Military_operation his forces Military_operation and pursued Aiming Essex , overtaking Change_of_leadership the Parliamentarian army at Newbury and forcing them to march Self_motion past the Royalist force to continue their retreat Escaping .