The 27th book published by Bantam Publications is Danger Mansion: A Murder Mystery and A Resourceful Lady by Philip Wylie. Danger Mansion was first published in the December 1937 issue of The American Magazine, A Resourceful Lady in Liberty Magazine's March 21,1934 issue.
In common with all but one of LA Bantam's books Danger Mansion is 100 pages long and is 110 mm (4 5/16") wide by 152 mm (6") tall. Cover and pages are made from high acid pulp paper. The page collation is:
[1] title page,
[2] copyright page,
3-74 Danger Mansion,
[75] half-title,
[76] blank,
77-100 A Resourceful Lady.
The copyright dates are 1937 and 1934. The back cover is an ad for Bantam books.
In common with most LA Bantams there are variant covers, four text and an illustrated one. The text covers are dark blue/light blue, dark blue/light gray (see below), strong yellowish green/light blue and strong yellowish green/light orange yellow.
LA Bantam 27 illustrated
LA Bantam 27 illustrated back