The Adventures of Blake & Mortimer #1
"The Yellow M" kicks off a gripping mystery in The Adventures of Blake & Mortimer #1 (2007), a standout entry from the legendary Edgar P. Jacobs, who wrote, drew, inked, and colored this classic tale. When a shadowy criminal begins leaving a chalked yellow M at the scene of flawless crimes in London—then escalates to kidnapping—Blake and Mortimer must unravel a puzzle that defies logic. The cover by Jacobs captures the tension perfectly, a stark, eerie mark against the city’s backdrop.
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An audacious criminal is terrifying London, committing seemingly perfect crimes and leaving his signature of a yellow M in chalk. Despite announcing his targets, he seems unstoppable, and he's now turned to kidnapping.
Plot details indexed by the Grand Comics Database (CC BY-SA).