Rex Libris #5

Rex must work his way past sophisticated security systems, battle a giant indestructible robot, defeat dozens of bullet proof crystalline guards, and climb up really steep surfaces in order to finally meet with Space Warlord Vaglox and have a cup of tea. Only then can he obtain the object of his quest: the overdue Principia Mathematica. It all sounds ridiculously easy. Except Vaglox hasn't got any fresh cream, and might not play fair....