Book 1
Book 1
Monstrous Mammoths
Meet the Mudcrusts! Lowbrow Mudcrust is the lumbering, lazy head of the family, who is happiest when he is squelching hi... MoreMonstrous Mammoths
Book 2
Book 2
Sabre-toothed Terrors
Meet the Mudcrusts! Lowbrow Mudcrust is the lumbering, lazy head of the family, who is happiest when he is squelching hi... MoreSabre-toothed Terrors
Book 3
Book 3
Dirty Deeds
Meet the Mudcrusts! Lowbrow Mudcrust is the lumbering, lazy head of the family, who is happiest when he is squelching hi... MoreDirty Deeds
Book 4
Book 4
Chief Troubles
Meet the Mudcrusts! Lowbrow Mudcrust is the lumbering, lazy head of the family, who is happiest when he is squelching hi... MoreChief Troubles