Controlled by their tireless electronic brains which were programmed to admit no possibility of defeat, the gigantic robot tanks known as Bolos were almost indestructible, and nearly unstoppable. Their artificial intelligences were de...

Greylorn - Commander Greylorn must find a lost colony and beg it to come to Earths aid. But before he can accomplish this he must first survive a mutiny aboard his own star ship. A taut story of interplanetary intrigue and adventure! ...