  The curious Galactic features near G357.2$-$0.2 were observed with the
MeerKAT radio interferometer array in the UHF and L bands (0.56--1.68 GHz).
There are two possibly related features: a newly identified faint heart-shaped
partial shell (the "Heart"), and a series of previously known but now much
better imaged narrow, curved features (the "Worm") interior to the heart.
Polarized emission suggests that much of the emission is nonthermal and is
embedded in a dense plasma. The filaments of the worm appear to be magnetic
structures powered by embedded knots that are sites of particle acceleration.
The morphology of the worm broadly resembles some known pulsar wind nebulae
(PWNe) but there is no known pulsar or PWN which could be powering this
structure. We also present eROSITA observations of the field; no part of the
nebula is detected in X-rays, but the current limits do not preclude the
existence of a pulsar/PWN of intermediate spin-down luminosity.
