Mysteriously, he travels from Djibouti to Gondar by way of Ndjamena: two sides of a huge triangle.

ECONOMIST: African memoir: Bus rides | The

It is in Gondar that castles built in the 7th century overlook Lake Tana , the source of the Blue Nile .

FORBES: Connect

We got up at 4 a.m. in Ethiopia's castle town of Gondar to fight for good seats on the bus to the border.

WSJ: Halfway: More Anxiety��but Plenty of Joy