<s>
Trail	B-Application
of	I-Application
Tsathogghua	I-Application
is	O
a	O
Horror	O
tabletop	O
role-playing	O
adventure	O
,	O
written	O
by	O
Keith	O
Herber	O
,	O
with	O
art	O
by	O
Steve	O
Purcell	O
,	O
and	O
published	O
by	O
Chaosium	O
in	O
1984	O
.	O
</s>
<s>
Three	O
horror	O
adventures	O
set	O
in	O
Greenland	O
,	O
Canada	O
and	O
Grand	O
Rapids	O
,	O
Michigan	O
for	O
Call	B-Application
of	I-Application
Cthulhu	I-Application
,	O
based	O
on	O
author	O
Clark	O
Ashton	O
Smith	O
's	O
god-like	O
literary	O
creation	O
Tsathoggua	O
.	O
</s>
<s>
Trail	B-Application
of	I-Application
Tsathogghua	I-Application
is	O
an	O
adventure	O
in	O
which	O
the	O
player	O
characters	O
investigate	O
a	O
stone	O
slab	O
covered	O
with	O
unusual	O
markings	O
that	O
was	O
discovered	O
in	O
Greenland	O
by	O
Eskimos	O
.	O
</s>
<s>
Rick	O
Swan	O
reviewed	O
Trail	B-Application
of	I-Application
Tsathogghua	I-Application
in	O
The	O
Space	O
Gamer	O
No	O
.	O
</s>
<s>
Swan	O
commented	O
that	O
"	O
If	O
you	O
've	O
been	O
happily	O
devouring	O
Chaosium	O
's	O
Cthulhu	O
releases	O
,	O
rest	O
assured	O
that	O
Trail	B-Application
of	I-Application
Tsathogghua	I-Application
is	O
another	O
top-notch	O
effort	O
.	O
</s>
