A third holiday adventure (Silly Tilly and the Easter Bunny, 1987, etc.) about the absent-minded mole and her friends. Tilly ``forgets to remember'' lots of things, such as why February 14 is a special day, how slippery snow is, and that she has cupcakes in the oven. On this Valentine's Day, it's snowing so hard that Tilly's glasses become clouded, so there's more silliness resulting from her poor vision. Her friends Mr. Mail-Mole and Mr. Bunny help her out of these difficulties, and they eventually have a jolly Valentine's celebration. This has inconsistencies for an I Can Read: The dialogue makes use of contractions erratically; commas are occasionally omitted in places where standard usage requires them, e.g., to set off the word too, and at the ends of some lines of poetry. Still, easy-to-read holiday stories are always in demand, and this one is, if unexceptional, fairly harmless. (Fiction. 5-7)