"Where on earth is the Isle of Mull?" asked Bakky to his father."
When Bakky was looking for the Isle of Mull in the atlas, he would have found Scotland first. But Mull is hard to find on a large map so he would have looked closer still....
Fionnphort is situated right at the south western tip. If you look carefully, you can see the Isle of Iona just next to it.
Since we've now arrived in Iona, you might want to see what it looks like. This is the view that Bakky and Arthur would have seen of Iona, from Mull
If you look carefully, you can see the Abbey off to the right. But the real action happens at the old nunnery. Who knows where St. Columba's crypt is hidden?