Graham looked around to where they had landed. A lilac sky with orange-tinted clouds hung overhead, and below it a vast desert of white-coloured sand spread out in every direction. Although the landscape initially appeared sparse, there were several cylindrical, metallic pillars dotted around, one of which was a few metres away and was now being examined by the Doctor.

"At least we landed where we were going, eh?" Graham offered, walking across to the Doctor. "Doesn't look like much of a city to me, though."

The Doctor took out her sonic and began buzzing it at the pillar. "Chartreuse is by far the biggest city on all of Jinjur. It spans for thousands of miles in every direction. The actual domestic area is probably a couple of hundred miles that way. Or maybe that way." The Doctor pointed in two completely opposite directions, shrugged, and continued with her sonic-ing.

"So how do we get the TARDIS back?" asked Ryan.

"Were you not listening earlier; we're in 'The City of Wishes'. I bet I can guess what the Doctor's going to wish for," Yaz smiled.

The Doctor sighed. "Maybe. Trouble is, now that the TARDIS is in for repairs, wishing it back might be even more dangerous. Who knows what state it'll be in."

"Well, we can at least try right?" Graham offered. "How do we go about getting one of these wishes anyway?"

"The legends say all you have to do is make it to the palace of King Ozymandias. A person capable of such a feat is deemed worthy of being granted one wish from the King himself, on the proviso that it in no way directly or indirectly causes harm to others. Which is a nice caveat as caveats go."

"Wait, Ozymandias? As in the Pharaoh Ramesses?"

Everyone turned to Ryan as if he'd just spoken fluently in another language.

"What? I listened in class sometimes."

"Supposedly, Ozymandias took a holiday to Earth once. He'd only planned to stay a weekend but ending up leading Egypt for the best part of a century. Everyone's had a holiday like that, though," shrugged the Doctor.

"So which way is the King's palace?" Yaz asked, watching as a small dial rose up on the top of the pillar the Doctor had been scanning.

"Great question! I don't know. But this thing does."

The Doctor gave one last whirr from the sonic screwdriver and several segmented colours appeared underneath the dial, appearing in the order of a rainbow.

"Pathfinders. I love these things. Just pick a destination and a holographic line appears on the ground showing you where you need to go." The Doctor began turning the dial around the colours. "Blue for settlements. Green for the nearest restaurant. And yellow…"

The Doctor pointed the dial at the yellow segment and within seconds a thick, gold line spread out from underneath the team's feet, shooting up over nearby hills and far off into the distance.

"…will take us to the King."

Graham chuckled. "Could do with one of these on Earth. Save me getting lost when they change the bus routes."

"It's called 'Google Maps' old-timer," Ryan sighed.

"What about the button in the middle, Doctor?" Yaz asked, looking at a white button in the centre of the device that had begun pulsating. "It's started flashing which is normally very good or very bad."

"It's just if you want a voice interface to guide you. It's a bit like TomTom. Only you get a hologram of the person too, in case you get lonely. I always thought TomTom should be called 'To-To'. As in, 'Where are you going To-To?'"

"I have KITT from 'Knight Rider' in my old banger," Graham told Yaz.

"Seriously, how old are your references?" balked Ryan.

"Meh, they're always a bit cheesy, aren't they?" the Doctor said, scrunching up her nose. "Having some kind of interface telling you where to go. It'd be…"

The Doctor trailed off, an idea formulating in her head. All of a sudden a huge grin appeared across her face, and she began pointing her sonic at the button.

"What're you doing now?" Graham moaned. "Can't we just go already?"

"I saved his data to my sonic as a backup years ago. I kept meaning to get around to building him a new body, but, you know, things always get in the way."

"Whose data? What is she gabbing about?" Graham asked.

Yaz shrugged. "Not a clue."

The Doctor stopped the sonic and excitedly hit the white button.

Everyone turned around to see what was different, though nothing seemed to have changed.

"Mistress."

A robotic voice floated up from the ground and everyone looked down at what seemed to be a small, metal object shaped like a dog.

"K-9!" the Doctor laughed, attempting to throw her arms around the robot dog, only to phase through him entirely.

"It is important for mistress to remember that I am a holographic interface, and not a physical manifestation of her former companion."

"I've missed your sense of humour," smiled the Doctor.

"You have a robot dog?" Yaz asked.

"Called K-9?" Graham added. "Bit on the nose, ain't it?"

"He's amazing, isn't he?" the Doctor beamed, ignoring the baffled faces of the others.

"I have been programmed to guide you to the Palace of King Ozymandias. Follow me."

K-9 scooted off, his holographic projection having none of the problems traversing the uneven environment that his corporeal self once had.

"We're on a planet following a robot dog that will lead us to some King who grants wishes," balked Graham.

The Doctor grinned and began marching behind K-9. "Brilliant, eh?"