The Priory of Finchelsea VIII.

Dr. Lilian Barton looked down at the prone corpse of Dr. Llewellyn Pryce-Rees-Evans-Jones as it lay on the beautiful encaustic tiles of the English Chapel of the Church of Christ the King, Gordon Square. She stared in disbelief at the arabesques around the body's outstretched arms.
Her remark on the subject was actually unprintable on a weblog like this. And no wonder, for the arabesques formed a very large version of Batman's Bat-symbol. Beside him were a series of numbers and three lines of writing:
1,7,2,8,3,5,9,3,6,97
Ha Cohen Hagadol
Summer is acumen in
Beware the Bat

"I am going to scream," Lil Barton declared.
"What do the words mean?" Inspector Flash demanded. The symbology professor groaned.
"Gobbledygook. Inspector, the man had had a sword buried in his head. The symbolism means nothing outside of a DC comicbook."
"You were lecturing on religious symbolism in DC comicbooks last night, Dr. Barton," Flash said menacingly.
Before Dr. Barton could do what she wanted to do, which was to scream and kick the man, DC Jones announced:
"Sir, le cryptogapher est arrive."