A defenceless creature in peril.  Two children fight to save it. People laugh at 12-year-oldDuncan Logan for believing in the Loch Ness monster. Then he finds an enormousegg buried on the shore of the loch - an egg that can only belong to onecreature...  But Duncan is betrayed byhis best friend and the egg is taken by greedy Nessie hunter Linus Todd whowants to exploit it for vast sums of money. Sinister government scientists arealso taking an interest in the egg, keen to experiment on it and keep the babycreature inside it in captivity.  Desperate to protect theegg, Duncan and his younger sister Catriona steal it back and go on the runacross the Scottish Highlands. Todd and the police come after them, but can theyoungsters evade the search and return the egg to the loch before it hatches?