Two unlikely dinosaur friends brave the way in the second book in the Thunder and Cluck Level 1 Ready-to-Read Graphics series! It is a hot day. Thunder and Cluck find a dark, cool cave. But which friend is brave enough to lead the way in? Ready-to-Read Graphics books give readers the perfect introduction to the graphic novel format with easy-to-follow panels, speech bubbles with accessible vocabulary, and sequential storytelling that is spot-on for beginning readers. There's even a how-to guide for reading graphic novels at the beginning of each book.