I was away from the house several hours and gave the dogs just one food-stuffed toy each. As I left the house, I glanced quickly at the books on the living room table, but thought to myself "Nah, those books have been there all week. He won't even notice them."
Boy was I wrong. Apparently the books provided Talos with a chewing opportunity that was much better than the toy I left him with. Totally my fault, I'll accept the blame for this: I should have had the books out of his reach.
Both Tango and Talos are confined to the living room where (I thought) there wasn't any trouble to be found. Lily's crated in the kitchen and Nemo has free run of the kitchen. For a big dog, Nemo's not a counter surfer or trouble maker. Lily is crated because she's both a counter surfer and a trouble maker!
Clearly, I'd left Talos for too long without providing him enough entertainment. And those books were nice and thick and really felt good on his gums...