Frog Heaven is a "black liner" book offering a useful resource for educators and plenty of associated fun for children, while carrying a helpful message explaining Death and the natural cycle of things in reassuring terms. There are line drawings to colour in accompanying the tale of little Cheryl, who buries a dead frog in a shoebox and is concerned that her elderly grandfather could die too. There is a section of information for teachers, and details galore about the different frog species to be found around the world, with projects based on the information in the book. Plans for creating frog- and toad-related musical instruments, wall charts and calendars make this a fun educational book with a difference, from experienced children's author Mary Filmer.