Set in the great land of the brooding Angel during the vampyre's fifth year there: 

Coming out of the amulet and with Angel's constant assurances that Buffy is better off without him, Spike has decided to not tell Buffy he's back from the dust. However, when Spike is healing from Dana's double hand-ectomy, he finds an unusual coloring book stuffed in the pile of Adult Coloring Books meant to help him regain manual dexterity. This one left by the recently departed Andrew Wells. Opening it, he finds that it is indeed... ADULT. In fact, it looks suspiciously like a coloring book made from certain spy footage from his sessions with Buffy in his crypt. (He also notices he's the only one colored in.)

In other words, Andrew is a dead man. And he won't answer his phone. So, Spike finds his way across the ocean (one way or another - does he steal Angel's jet, perhaps?) with the express intent of murdering the little dweeb.

Except that when he arrives in Rome, coloring book in hand, he doesn't find Andrew, he finds Buffy.

Andrew's master plan has come to fruition. The Vampyre and great Vampyre Slayer are together again at last.

Reqs: crack-y, filled with illustrations and or just plain fluff, go wild! Bonus points if Spike "accidentally" makes a copy and leaves it on Angel's desk

This challenge owes immense credit to handwithquill for her Andrew-publishing and Spuffy-reunioning ideas in the SB when my brain decided a Spuffy "adult" coloring book needed to be Adult