  We give a one-parameter family of exact solutions to four-dimensional
higher-spin gauge theory invariant under a deformed higher-spin extension of
SO(3,1) and parameterized by a zero-form invariant. All higher-spin gauge
fields vanish, while the metric interpolates between two asymptotically AdS4
regions via a dS3-foliated domainwall and two H3-foliated Robertson-Walker
spacetimes -- one in the future and one in the past -- with the scalar field
playing the role of foliation parameter. All Weyl tensors vanish, including
that of spin two. We furthermore discuss methods for constructing solutions,
including deformation of solutions to pure AdS gravity, the gauge-function
approach, the perturbative treatment of (pseudo-)singular initial data
describing isometric or otherwise projected solutions, and zero-form
invariants.
