Doctor Who and the Cave Monsters: An Unabridged Classic Doctor Who Novel

All is not well at the Wenley Moor underground atomic research station: there are unaccountable losses of power-output; nervous breakdowns amongst the staff; and then - a death! UNIT is called in, and the Brigadier is soon joined by Doctor Who and Liz Shaw in an adventure with subterranean reptile men - Silurians - and a 40 ft high Tyrannosaurus.