Unlock! Kids: Irish Folklore Trilogy is the fourth instalment in the Unlock! Kids series, with new adventures in three settings:

• "Song of the Sea": Help Ben and Maïna unlock the magical creature's feelings and discover Selkies and their powers.
• "The Secret of Kells": Follow the young monk in his learning of illuminations and combat the terrifying creature Crom Cruach
• "Wolfwalkers": Follow the adventures of Robyn who dreams of becoming a wolf hunter and discover the mysterious powers of Mebh, guardian of the forest.