As Poseidon pulls up to Mount Olympus, I feel sick to my stomach. If this goes wrong, what will happen to us? Will we die? Will we be plagued by the Furies forever?

Apollo seems to sense my worries and puts a comforting hand on my shoulder.

‘Don’t worry, Artie,’ he says. ‘We’ll be fine.’

Then we turn to Poseidon, waiting for the game plan. He already looks like a hardened criminal.

‘Ok, so we have to be in and out, as quick as a flash,’ Poseidon says. ‘Well, I won’t be in, I’ll be waiting under the bridge that takes the two o’clock train to Thessaly. You just have to be on that train. I don’t care about your methods, as long as you don’t kill anyone.’

‘Of course Uncle,’ I say.

Then we hop out of the boat and begin to walk up Olympus, leaving Poseidon to sail away.

At the top, the others are having a feast to honour Hermes’ birthday. Everyone is here, even Hades and Hestia. Luckily they don’t see us.

We creep past them and find our way to Hera’s treasury.

No one is in there.

We open our sacks and begin to fill them with jewels and pieces of coin. It doesn’t take long for them to be spilling over with precious things.

Suddenly we hear a cry.

‘Artie, Apollo! What are you doing?’

We turn to see Hera, Athena and Ares walking into the grand hall.

Damn. Double damn.

‘We’re sorry Hera, but we have to do this,’ Apollo says.

I can see our stepmother’s face becoming redder and redder until it’s practically purple with rage.

‘Apollo, run!’ I yell and we sprint off down the hall and out the exit, and then we’re falling, falling down Mount Olympus.

I keep catching on the rocks, cutting my arms and legs. Without my powers I’ll have no way to heal them.

We crumple into a heap at the bottom, all the breath knocked out of us.

But we can’t stop. The skies have turned dark and stormy and thunder crackles above our heads. Dad.

In the distance I can see Ares and Athena coming down the mountain on golden horses.

‘Artie, come on it’s almost two.’ Apollo yanks me up and begins to lead me to the human city of Macedonia.

We dash down the roads, hills and country lanes and finally reach the train station.

But Ares and Athena are hot on our tails. We quickly board the train and weave through the mass of passengers and carriages until we reach the one next to first class.

As the train pulls out, I breathe a sigh of relief. But I wonder, when this is all over, will we be allowed back into Olympus or will we be exiled off to Earth?