Mark Walden's most popular book is H.I.V.E.: Higher Institute of Villainous Education with 50 saves and an average rating of 3.92.
Series
9 primary booksAuthored 100% of series
H.I.V.E. is a 9-book series with 9 released primary works first released in 2006 with contributions by Mark Walden.
Series
2 primary booksAuthored 100% of series
Earthfall is a 2-book series with 2 released primary works first released in 2014 with contributions by Mark Walden.
Series
15 primary books17 released booksAuthored 6% of series
The Last Apprentice is a 17-book series with 13 released primary works first released in 2004 with contributions by Mark Delaney, Joseph; Walden, Mark Walden, and Joseph Delaney.