The Sign of the Rabbit, author Vicky Veloso-Barrera’s adventure series returns with Book 3: Fibonacci’s World. In these books, the rabbits of the Sign battle the evil death rats over the fate of mankind.

Rina Santos and her children are in San Francisco USA while her husband Manolo is in Manila. The lame rabbit scientist Fibonacci copes with loss, aided by his friends Tiny, Greylight and Prim. The quest for the Sign continues, this time the rabbits and rats are joined even by aliens. Meanwhile the rats are making careful plans for a massive battle on several fronts which the rabbits must uncover. They too make preparations for battle, and each side has a host of physical and invisible allies.