Stuck on a train with no lights just sitting in Worcester in the rain

Tonight's commuter-rail tale of woe comes from Jennifer Emmaline, who thought her train from Worcester to Boston would leave at 7:50 p.m., only to learn that a) An Amtrak train that got to Union Station, looked around and decided that was as good a place as any to just die and b) The solution turned out to be to connect that train to her train, which would then try to pull it all the way to South Station.

She provided status updates, starting with the first notice from Keolis that the train was late, due to the Amtrak corpse:

8:24 p.m. many passengers waiting in Worcester, our sanity depends on leaving soon.

8:41 p.m. Amtrak train now in Worcester- commuter rail immediately behind- as if pushing?

8:42 p.m. we walked a ways to board commuter rail, now we're moving.

8:44 p.m. no announcements - were just chilling in commuter rail behind the Amtrak train.

8:46 p.m. we only moved a few yards. Now we're just enjoying the stillness.

8:47 p.m. they just turned off the lights. No explanation from noone.

8:51 p.m. we were directed to commuter rail behind Amtrak train. I'm starving.

9:02 p.m. so Worcester passengers for 750 train now on board the delayed 830 train. But hey, we're moving!

9:02 p.m. electricity back on. Conductor sez we are tugging Amtrak train back to Boston.