Maeshowe is the best preserved neolithic tomb on Orkney and it holds the largest collection of runes outside of Scandinavia. Entrance is by guided tour only, in small groups. It’s not easy to get tickets – when we tried to book in early April there were only two dates left in June where we could both go together!

Runes, in case you didn’t know, are a form of Viking writing. The Vikings apparently broke into Maeshowe after it had been sealed up for centuries. The events are recorded in the Orkneyinga saga, which is possibly not entirely historically correct, but is very dramatic. Whilst in the tomb (they say sheltering from a storm, but I reckon looking for treasure) they left a lot of runic graffiti. Most of it seems to be along the lines of ‘Erik was here’ and boasts about how good they were at writing ruins, but there’s also a very detailed and beautiful ‘dragon’.

Photography isn’t allowed inside Maeshowe. Whilst that does spare you footage of me crouch-shuffling along the entrance tunnel it means you miss out on seeing those carvings. Or it would have done, had I not bought you a couple of postcards.

We extended our stay on Hoy so we could have a guided tour of a Martello tower – I’ve seen the outside of several and fancied having a nose inside. Glen, our guide, is clearly as passionate about the history of the barracks and tower as he is knowledgeable. We arrived early, so he started early, and when he learned we didn’t have to rush off, he carried on long past the regulation time period. One of the things which made it so fascinating was that Glen met and interviewed the person who lived in the barracks after it became a croft, and who was responsible for saving it – as well as providing amazing insights into what it was like there during war time. I’d share it with you, but I need to get the next novel written.

After seeing inside and learning about the barracks, we headed for the tower. There was only Gary and I on the tour, so I got to open up! (The slowest storming of a tower in history, Glen reckoned.) The key doesn’t just open the door, it’s also a defensive weapon. The shaft was hollow and could have been used like a tiny cannon.

There are three levels. We entered on the floor where the soldiers would have lived. The wall is seven foot thick there! There were fireplaces, but no chimneys (in this particular design). From the middle floor there is a spiral staircase down to where food and munitions were stored, and there’s also a cistern which collected drinking water from the roof. Another spiral staircase leads up to the top, and provides great views.

One of our main reasons for visiting Hoy (other than the excitement of the ferry crossing) was to see the ‘Old Man’ sea stack. From Rackwick where we stayed, it’s a very pleasant (if steep in places) five and a bit mile walk. We liked it so much we went out one evening, and again the next morning.

Rackwick bay is a popular place for people to stay on Hoy. One reason is the bothy – it’s very basic accommodation, but there’s a wood burner, table and chairs and camp beds – and a toilet next door. Perhaps, other than the lovely location, the main attraction is that it’s completely free.

We didn’t stay in the bothy, because you can also park your van there for free, and they provide toilets, waste disposal and water. You’re advised to boil the water, but as you have to do that to make tea, it wasn’t a problem!

It’s the summer solstice today and it seems right to celebrate it at the Ring of Brodgar and nearby Standing Stones of Stenness. We won’t be staying up until it gets dark, because that won’t be happening here tonight, but we will walk amongst the stones and toast them (with something other than tea!).

Here are some photos taken a few days ago, when we had a guided tour of the stones and Barnhouse village – a neolithic settlement discovered fairly recently, right behind the stones.

The stones at Stenness were once part of a stone circle, with a surrounding ditch. This is the earliest known henge structure in the British Isles – several hundred years earlier than the Ring of Brodgar. The tallest stone is over 6 metres high.

By the way, this collection of 24 of my slightly spooky stories is currently on sale at 99p / 99c.

There’s a nature reserve walk at Deerness, which includes a collapsed sea cave called The Gloup, dramatic scenery and good opportunities to see interesting birds, so obviously, despite the rain, we had to go.

After The Gloup, there’s the option to negotiate a really scary path to reach the brough of Deerness. All that remains of the brough is a ruined building which may have been a chapel, so we didn’t need to do that – which doesn’t mean to say we didn’t do it.

Despite me being as sure footed as a mountain goat, and speedy as a diving gannet, Gary still somehow managed to get far enough ahead to film me demonstrating my fearless mountaineering skills. I could have done with something stronger than tea after that, but we brewed a pot anyway, as wine o’clock was still some time off.