Blocked Writer?

Calvin: Want to see my latest Invention?
Hobbes: What is it?
Calvin: It's a writer's block! You put it on your desk and you can't write there any more!

Calvin: I must be years ahead of my time.

—by Bill Watterson

And we see Katib's been absconding in his entirety for as long as we can remember [and THAT, sounds like a really long time]. Seems like the poor dude's got some 'sorting-out' to do in life, and that's eating away most of his time and head. But fear not, for we shall drag him back here once again after his stuff's done!