An adventure school trip at Shiver Heights castle is the last thing Tom wanted to do for his summer. But he and his best friend Ella are determined to make the best of it. That is until he spots a rat! They seem to be everywhere, sabotaging their activities. Almost as if they're being controlled by someone... but who? Can Tom and Ella find out the truth behind these raging rats?
Ron wants to play tennis. He tries to play with others but it does not go well. Who will play with him?
Unicorn wants a hat like the rest of the animals. But none of them seem to fit him. Will he find the perfect hat?
Amon is amazed at the old things that have been dug up in the desert. He wants to dig for treasure too! Together with Horus, they search for a lost pharaoh's treasure...
Oscar loves computer games and coding, but when his mum drags him to a draughty castle he might be in for the adventure of his life. After finding a secret door, Oscar steps back in time and soon finds himself in the middle of a plot to overthrow the king. Can Oscar use his codebreaking skills to stop the plot and return home?
Sprog is the world's first time-travelling frog! But he is left stranded in Ancient Greece after a T-Rex breaks his time-hopper. With the help of his new friend Linus, Sprog must find a way to fix his time-hopper and return to the present. Can he jump forwards in time to make it back home?
Rowan watches helplessly as Roman soldiers steal her precious sheep. When she's spotted, Rowan has to flee but vows to never let it happen again. After meeting a wounded Iceni soldier in the marshes, Rowan realises she could be vital in helping Queen Boudicca's fight against the Romans. But can she find the courage to fight for their freedom?
Marian doesn't want to go to school. She'd rather climb trees than do needlework. But Greenwood School isn't like most other girls' schools: they're taught how to fire a bow and arrow, navigate the woods and track animals. When her headmistress is captured by the villainous local Sheriff, it's up to Marian and her friend Robin to come to the rescue.
Bean grows and grows until... he is picked. Where will Bean run to?