Kai took out his Border Guard Card. It looked like a student card. He put the card into his computer. Then there was a very loud noise.


Four big bricks in the wall behind Kai began to move. They made a hole in the wall. Kai went through the hole into the room.

It had three walls with battle gear on them.

A screen was over the last wall. I can’t have stuff from that wall, thought Kai. It’s still locked. I need to win more battles.

On the second wall was a heat laser. Kai read its tag. ‘This can dry up water. We want this, BC,’ said Kai.

Kai went to take it. He heard a noise like locks closing. Then he heard


Then a computer voice said


‘When will the BMC let me have things from these other walls?’ asked Kai. ‘Oh well.’

Kai looked at the things on the first wall. ‘Let’s take this, BC,’ said Kai.


‘This thing can zap stuff and heat up water. Maybe this could be handy,’ said Kai.

‘We can only have one more thing from here,’ said BC.

‘Yes,’ said Kai. ‘I think it should be this.’

‘What does it do?’ asked BC.

‘It shoots a torpedo that goes fast under water,’ said Kai.


Kai and BC went back into the lab. Then Kai picked up his hover board. It had jets and could go at fast speeds.


‘And I think we should take this,’ said Kai.

Kai and BC went into the lift. It took them to the takeoff pad. Kai pushed the code for Aquatan on his orb. The lift went up to the top floor. When Kai got out he was in full battle gear.

‘The BMC has given us under water tanks!’ said Kai.

Just then Kai’s orb beeped.


‘What’s rot moss?’ asked Kai.

‘The green slime maybe,’ said BC.

‘It doesn’t sound like fun stuff,’ said Kai. ‘Time to go.’

Kai hit the light button on the orb. The roof of the lighthouse opened.

The take-off pad lit up with light. The light went up into the sky.

It took Kai and BC with it to the water land.