It's a good thing that Violet Baudelaire has a real knack for inventing things. When misery comes to call, the right invention at the right time can mean everything.
It's also fortunate that her brother, Klaus, has read lots of books and knows many important things, like how to tell an alligator from a crocodile and who killed Julius Caesar. When everything that can possibly go wrong does, a small fact can be vital.
It's lucky, too, that Sunny Baudelaire, the youngest sibling, likes to bite things. Even though she is an infant, and scarcely larger than a boot, she has four very big and sharp teeth. When trouble comes along, sharp teeth can save the day.
But most of all, it is good fortune that Violet, Klaus, and Sunny Baudelaire are as sturdy and resilient as they are, for ahead of these three children lies a seemingly infinite series of unfortunate events.