With yellow-green skin and long animal fangs, the mask terrifies the entire neighborhood. Before long, it has a surprising effect on Carly Beth, too. She tries to take it off . . . but it won’t budge! Halloween is almost over, but fright night is just beginning.

Chills, thrills and humour from the hugely popular Goosebumps series A full length graphic novel edition Brought to life by incredible illustrator, Maddi Gonzalez

But the most alarming thing about the toy ooze is the way it keeps growing – overflowing its container, then a bathtub, then filling up a whole trash can. Evan worries that all that growing has given the Monster Blood a monstrous appetite…