The Sullivan Detective Agency

Meet twelve-year-old twins, Carter and Cooper Sullivan, whose bond is as strong as their knack for solving mysteries! Teaming up with the wise and witty retired Irish detective, Mr. Amos Murphy, the boys embark on a whirlwind of thrilling escapades, from uncovering hidden treasures to deciphering cryptic clues. Together, they navigate the complexities of family, loyalty, and friendship, learning to appreciate one another's unique strengths and weaknesses.

In the second part of "The Sullivan Detective Agency" series, the Sullivan twins, Carter and Cooper, travel to Ireland with their retired detective neighbor, Mr. Amos Murphy, to investigate the secrets of the legendary Murphy family castle. Along the way, they encounter a mysterious creature, a hidden servants' quarters, and a series of strange occurrences that lead them on a thrilling adventure.

Carter and Cooper Sullivan, identical twins with a talent for trouble, are convinced that their unassuming junior high, Bloomfield, hides a secret. Whispers circulate about a hidden basement and, more thrillingly, evidence of a mysterious sarcophagus. When they finally uncover the entrance—a locked door leading to a secret staircase—they enlist their adventurous friends, Brody and Kylie, to investigate.

A summer trip back to Ireland with their neighbor and friend, Mr. Amos Murphy—a retired Irish detective—ushers the Sullivan Twins into a thrilling adventure that they will remember for years to come. The boys, eager for excitement, are once again joined by the high-spirited Irish siblings, Ciara and Finley O'Brien. Together, this dynamic team joins forces to unravel the captivating mystery of The Dullahan, a legendary figure steeped in Irish folklore, who is said to make an eerie appearance once a year during the Kilorie festivity.