Whenever the stars align, the moon is full, or exceptionally rare events occur, Arcturax and Azrael end up turning into were-marsupial hybrids, the Kangabat! And depending on how rare such events are, say, a Friday the 13th and a "Honey Moon" that only occurs once a century or so is certainly a >very< massive influence on just how tall a kangabat can grow! Now that she's got her paws on that powerful moon... no telling just how big she'll grow now!