Thank you all for your help and advice. Unfortunately, the crack was at an angle, and though it was a clean break, would have been too unstable to glue back together, IMHO. My aha moment was to call my son, who is even craftier than I (the apple doesn't fall too far from the tree) and who has all the big tools. When I explained what happened, he said, sure, come on over. And 10 minutes after I got there, I had 2 rulers - 14" and 7-1/2". I told my DH that I wasn't going to replace it, since I had actually found the 24-1/2" length unwieldy and awkward to handle, but I had broken my June Taylor 12" Shape Cut and wanted to replace it with the 18". So he said he'd buy it for me. Like I said, he's a sweetie.