Chained library in Hereford. Chaining books was the most widespread and effective security system in European libraries from the middle ages to the eighteenth century. 1611
**SPOILERS** Regarding the recently revealed Tezzeret, what about him makes him Blue or Black? He ramps, he pumps your creatures (although occasionally killing things), and then gives you more creatures for free (rather big ones by blues standards)... My general impression was that he's extremely Green for a Dimir Planeswalker.