Comic Title: Detective Comics #378
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1968
On Sale Date: June 27, 1968 Copyright Date June 27, 1968
Source: Library of Congress, Periodicals 1968

Newsstand Date June 27, 1968
Source: Newsdealer Magazine, V23 #4

Newsstand Date June 27, 1968
Source: Comic Reader, #66

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "Batman! Drop Dead... Twice"
Pages: 14

Feature(s):
Batman (of Earth-1)

Writer: Frank Robbins
Penciller: Bob Brown
Inker: Joe Giella

Reprinted In:
Showcase Presents:Batman Vol. 4 TPB (2009)

Feature Character(s)

• Batman (last appearance in Brave and the Bold #79; next appearance in Detective Comics #379)

Supporting Character(s)

• Robin (last appearance in World's Finest Comics #177; next appearance in Detective Comics #379)
• Alfred Pennyworth (last appearance in Brave and the Bold #79; next appearance in Detective Comics #379)

Villain(s)

• Salvo and Chino (a professional crook and his apprentice; next appearance in Detective Comics #379)
• Chopper (Salvo's assistant; next appearance in Detective Comics #379)
• Icer (an underworld sniper; next appearance in Detective Comics #379)

Other Character(s)

• Joe (a photographer; no further appearances)
• Salvo's unnamed girlfriend (no further appearances)

Comments:
This story continues in the first story of Detective Comics #379.

Synopsis:
Batman and Robin have a falling out which causes the Boy Wonder to leave the team. At the same time Salvo, a professional crook, and his apprentice Chino have a similar fight. Chino rents a room and takes in Dick Grayson as his roommate. Dick soon discovers that Chino is a crook, but he hopes that he can set the boy straight. Instead Chino intends to use Dick as bait to kill Batman. Chino dresses Dick in a Robin costume, then sends Batman a note that will lead him into a trap.

Meanwhile, Salvo has also learned about the Batman-Robin split. He dresses his assistant Chopper as Robin and uses the same plan as Chino to set a trap for Batman. The Caped Crusader then receives two notes that claim Robin is a prisoner. Batman must then perform two rescues simultaneously.