Riding home in the sunshine, just turned the corner to start mounting the hill, when

crunch

and the shifter stopped working.

I rode down to the bike shop (a mostly level ride back to Marymoor Park, and then on the trail on up), where they found that the cable was broken somewhere deep in the housing. No chance of just fishing it out, replacing it, and letting me go on my way. Since they have a lot of bikes to work on, they’ll deal with it some time tomorrow. So the bike’s in the shop overnight, and they’ll call me about when I can pick it up tomorrow.