PRAISE FOR THE INVISIBLE TOWER: “High-spirited and fun. Gives new life to Arthurian legends and may just send readers back to more traditional tellings.” - Kirkus Reviews
“The draw here is the action, and there is plenty of that. As Artie dodges fire spells and enchanted swords, gamers will find themselves reaching for their controllers while they await the series’ next installment.” - Bulletin of the Center for Children’s Books
“Fresh and fun, with plenty to offer the avid reader looking for a new series.” - Voice of Youth Advocates (VOYA)
“Short, action-packed chapters and funny dialogue make this book a surefire hit with the legions of Rick Riordan fans.” - School Library Journal
“An entertaining quest fantasy, sprinkled with hints of hidden agendas, and juiced with enough creativity to carry readers happily into future episodes.” - Booklist
“A wild mix of Arthurian tales and a 21st century world. Real excitement and horror await readers in this new take on classic Arthurian lore.” - Kirkus Reviews