Oh I love what you've done with this prompt. This has almost the feel of time travel, even before Harry goes to rescue Severus, with the switching of scenes between the past and present. Severus finding a way to save himself somehow hoping? knowing? Harry would eventually find him. I loved Livorno as well as the other teachers who helped Harry figure out how to get to Severus. Also, good job coming up with Merlin's Memorial Library--there really should be a proper wizarding library like that. Great job.