through mud.â
Just then Kaiâs orb beeped
âItâs a text from Li,â said Kai. âHeâs coming in the Jet Stream 2W. He says itâs even better than before.â
âDid the catbot get any upgrades?â asked BC.
Kai patted BCâs head and said, âDonât worry about the cat. We have bigger things tochase right now.â
Kai saw the Sludgebot that he used in the mud land last time. âThe BMC has added loads of upgrades to this, BC,â he said. âAnd it can join with Liâs Jet Stream 2W. Thereâs a gadget next to it.â
âIt says Heat-Zap Combo,â said BC. âIt must be the Heat Blaster and the water land Super-Zap joined together.â
âThis is perfect for us,â said Kai and he hit the Sludgebot button. âLetâs go, BC.â
Kai and BC took the lift to the transport chamber. The ride was waiting for them when the lift doors opened at the transport chamberâs floor.
Kai put BC into the rideâs cockpit. Then he climbed in after him. He keyed in the codes for the mud land on his orb.The chamber doors opened and the Super Sludgebot shot out the tunnel to Beastium.
Kai and BC flew into blinding golden light. âWhere are we?â asked BC. âIâve never seen anything like this before.â
âWeâre in the mud land,â answered Kai. âThe brown sludge has turned toxic. Itâs all yellow now. Just like the mud that was on your eye lenses.â
âBut how has it happened?â asked BC.
âI donât know,â answered Kai. âBut the beasts are tagged by the BMC. My watch picks up those tags so we can track these two beasts down quickly. We need to get them back behind the Outlandsâ gates before they can do any more damage.â
âOh-oh,â said BC wagging his tail. âTrouble on the way.â
âWhere?â asked Kai. âI canât see anything?â
And then he heard it.
âItâs a massive bunch of flying toxic jellyfish!â yelled Kai. âAnd theyâre comingstraight at us.â
âAnd something else,â said BC. âCan you hear it?â
âRock-bombing hawks,â said Kai. âItâs a full-on pest attack!
You zap the birds with your eye lasers when I open the cockpit. Iâll get the flying jellyfish with the Heat-Zap Combo.â
Kai opened the cockpit. BC flew straight out towards the birds and began zapping.
Kai blasted the jellyfish one by one and watched them drop away. The heat-blaster is melting them, thought Kai. Good, only a few to go and then I can help BC with the birds.
âMore birds coming,â called BC. âToo many to handle! Theyâre dropping something. Something is making more birds!â
All of a sudden the Super Sludgebot was hit by a flying rock-attack. These pests are big trouble, thought Kai as he steadied the Sludgebot.
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âOne jellyfish to go and then I can help you BC. Hang in there!â
A text message suddenly flashed on Kaiâs cockpit computer.
All at once a terrible screeching noise broke out.
âAaagh!â cried Kai. He hit the button for his ear plugs. Then he looked out the window. All of the birds had folded their wings around their heads. The birds are falling away, thought Kai.
Then Kai looked at the flying jellyfish heâd zapped.They were lying in melted blobs on the mud.
Oh no. Theyâre turning yellow. Like the yellow toxic mud. What does that mean?
Then Kai saw Ying Liâs catbot. It flew past BC and over the top of Kaiâs Super Sludgebot. And its mouth was wide open. So thatâs where the terrible noise is coming from, thought Kai.
âBorder Guard Ying Li,â Kai said into the mouthpiece. âReport in for duty.â
âYing Li and BF reporting for duty Captain Kai,â Liâs voice said over the sludgebotâs speakers.
Kai stared at the speakers in shock. He could