Update on Shadow.
He and Trouble are getting along fine, though I've not caught them cuddling yet.
We've convinced Arty that Shadow IS NOT TO BE CHASED, now we just have to build Shadow's confidence so he doesn't bolt at the sight of Arty. Already seeing progress there, so I'm sure we'll get there eventually.
Shadow's already figured out that Apollo's not a threat, so although he's not THRILLED with Apollo, he's not scared of him either.
An updated photo of Shadow in my husband's lap this morning: