The ninth volume of the edition of cartoon stories called "Classic comics by Marko Čermák" from Václav Vávra Publishing House became the book Blue Five - The Mystery of the Old Fortress and Other Stories.
Modrá pětka (in the Marko Čermák Classic Comics edition, in addition to this book, it also includes volumes no. 2 and 8) is Marko Čermák's most extensive cartoon series. It also holds the distinct record of continuously running one cartoon series, in addition to one magazine.
That magazine was Pioneer Trail. It began to be published in January 1971 as a fortnightly magazine, from the 5th year 1974/1975 until its demise in March 1992 as a monthly magazine. Since 1990, the magazine has been called Stezka.
Readers could get acquainted with the adventures of the Blue Five for a full twenty years, from the very first issue until August 1990, namely the 12th issue of the 20th year.
Jiří Hromádko and Bohumil Kolář, hidden under the name J.B. Kamil, were the authors of the scripts for the series about the life of the rowing club.
In its category, Blue Five belongs to the series with the largest number of sequels after Quick Arrows.