o's first armed
invasion of the Light Country--some twenty of his most trusted men armed
with the light-ray. Joining his emissaries in the Water City, and with the
large following among the people there which they had already secured,
they planned to seize the government and obtain control of the city. Then,
using it as a base, they could spread out for a conquest of the entire
nation. Mercer listened with whitening face while Anina told him all this
as best she could.

"But--but why does he want to attack the Light Country, Anina? I thought
he wanted to go and conquer our earth."

"Very big task--your earth," the girl answered. "Light Country more easy.
Many light-rays in the Great City. Those he needs before he goes to your
earth. More simple to get those than make others."

Mercer understood it then. The large quantity of light-ray ammunition
stored in the Great City was what Tao was after. This was his way of
getting it, and once he had it, and control of the Light Country besides
he would be in a much better position to attack the earth.

The idea came to Mercer then to steal the boat and escape with it. If he
could do that, the enemies would have to return to the Lone City on foot,
and the threatened invasion of the Light Country would thus be postponed
for a time at least. Meanwhile, with the boat he could hasten back to me
with news of the coming invasion.

These thoughts were running through his head while Anina was talking. It
was a daring plan, but it might be done. There was apparently only one man
in the boat, and the slight rise of ground between it and the fire made
him out of sight, though not out of hearing, of the others.

"Can you run the boat, Anina?"

The girl nodded eagerly. Mercer drew a long breath.

"We'll take a chance. It's the only way. They've got that cursed
light-ray." He shivered as he thought of the danger they were about to
invite.

Then he explained to Anina what they were to do. She listened carefully,
with the same expectant, eager look on her face he had seen there so often
before.

They left the blanket and fur jacket on the ground, and, making a wide
detour around the fire, came back to the river bank several hundred yards
above the boat. They stood at the water's edge, looking about them. The
boat was just around a slight bend in the stream; the glimmer of the fire
showed plainly among the trees. Intense quiet prevailed; only the murmur
of the water flowing past, and