I am the same with Pratchett.
But Holt also has a sideline in historical fiction. Funny historical fiction. Hilarious, in fact.
The pick of the bunch is The Walled Orchard. Our hero, Eupolis, is a dramatist. The greatest dramatist Greece has ever produced. We'd all know about him if it wasn't for that tosser Euripedes who, although greatly inferior, has a habit of sucking up to the right people. We follow Eupolis from his lowly birth through to his triumph as a playwright and on to his somewhat less successul time as a soldier, bumping in to numerous names from classical history in the process.
If, like me, you love the Greek myths and plays then this skillful and clever comedy will greatly appeal. Holt's historical novels are so good they make me wish I liked his fantasy stuff more as they would give me much more to read.
But I don't, so will have to make do with this and a couple of others.