Brother Peter and Fudge must spend the summer with the dreaded Sheila the Great. Peter Hatcher describes his family's Maine vacation highlighted by the antics of his younger brother Fudge and the presence of his sworn enemy Sheila Tubman and her family.

The magic tree house is back with a message from Morgan le Fay telling Jack and Annie to seek out "The Gray Ghost" and listen to her story, and immediately they are whisked away to Nepal where they meet Tenzin, a climber who has recently lost his family, and who takes them up the mountain to meet a snow leopard and renew himself.