Even public libraries have been swept up into Royals vs. Blue Jays fever.

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The ALCS matchup between the Kansas City Royals and Toronto Blue Jays is a big deal to the club's respective home cities.

Not only did both mayors take part in the traditional pre-series wager, but as the series has progressed local libraries have gotten in on the act.

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Yes, libraries - which apparently have social media accounts these days, too.

Using books found on the shelves, these libraries strategically placed them on top of each other to send a message. The Kansas City Public Library kicked off the trash talking with a jab after the Royals' 14-2 blowout win in Game 4:

Some book spine poetry for our friends, the Toronto Blue Jays! #TaketheCrown

Posted by Kansas City Public Library on Tuesday, October 20, 2015

Not willing to sit idly by and be put down, the Toronto Public Library returned the volley on Wednesday before Game 5 (which the Jays won, it must be pointed out):

Our friends at Kansas City Public Library shared some book spine poetry with us this morning (http://ow.ly/TGJxS ) but we've got a way with words too. #ComeTOgether #GoJaysGo

Posted by Toronto Public Library on Wednesday, October 21, 2015

Thanks to Toronto's season-saving win in Game 5 on Wednesday, the series will include at least one more game on Friday night back at Kauffman Stadium - and, we can only hope, perhaps some more library social media warfare.