"Would platinum resist the attack of the acid?" Davis grew excited.
"Surely."
Davis jumped to his feet.
"Then we've got him! New piston rings will let you plate the cylinders without reboring them unless you're going to plate them heavily. Can you do the plating?"
"Try," said Teddy.
"We make a hundred and eighty with straight gasoline," said Davis excitedly. "With doped gas——How long will it take to fix my motors?"
"Four or five hours. We'll borrow the acid vats of some electro-plating concern. Evelyn will mix the solution of platinum salts. I'll go arrange to borrow the vats while you get your motors disassembled and brought here on a motor truck."
Teddy hastily began to put on his coat.
"You're going to try to fight Varrhus again?" asked Evelyn anxiously.
"Are we?" asked Davis cheerfully. "Just ask me! We are."