Diamond in the Snow by Jonathan Emmett
A warm-hearted wintertime tale and another outing for the lovable Mole and his friends.
COLD-diggerty! Mole thinks the diamond he's found is magic. It appeared from nowhere ... then it disappeared altogether! Mole is very disappointed when his friends let him in on the icy secret - that his diamond is, in fact, an icicle - until he discovers that magic can be found in all sorts of unexpected places.